Shop Amazon's full Prime Day sale here. To see more of our favorite deals, check out our daily deals page.

Each July, Amazon celebrates its founding by throwing a massive sale, slashing prices to levels not seen since Black Friday. This year, Prime Day is actually two days—Monday, July 15 and Tuesday, July 16. The sheer breadth of discounted goods can be overwhelming, so we're rounding up the best ones as we find them. Peruse our favorite sales below, and don't forget to check back in with us throughout Prime Day, because we'll be updating this post with flash deals as they appear.

Up to 35 Percent Off Kindle E-Readers

Kindle e-readers don't go on sale all that often, and Prime Day has some of the best deals we've seen this year. You can get a Kindle Paperwhite—which is waterproof for reading at the pool or in the bath tub—for just $85 (a $45 discount). The most basic Kindle is just $60, while the Oasis is $175 (down from $200 last month). Right now, you can get three free months of Kindle Unlimited and a $5 credit toward an e-book with all three models.

Shop: Amazon Kindle

Big Discounts on Electric Toothbrushes

Philips Sonicare

A number of high-end electric toothbrushes from both Philips Sonicare and Oral-B are on sale today, including some picks recommended by dentists Mental Floss spoke to earlier this year. The Philips Sonicare ProtectiveClean, recommended for patients with sensitive teeth, is $35 off, while you can get Sonicare's all-around powerhouse, the DiamondClean, for $84 off. The Sonicare FlexCare Platinum, which features a 3-minute timer for deep cleaning trouble spots, is $67 off. The HealthyWhite+ might represent the best deal, though—at just $49, it's almost 60 percent off list price right now.

Shop: Philips Sonicare, Oral-B

Almost 40 Percent Off Roomba Robot Vacuums

Prime Day is a great time to buy big-ticket gadgets and home appliances, so if you've been on the fence about buying a robot vacuum, go ahead and splurge today. The Roomba 891 vacuum features a 90-minute runtime, app-based controls, and the ability to tackle both hardwood and carpets with ease. Normally $450, it's just $300 today. The newer Roomba 980 is just $550, a $350 discount off list price.

Shop: iRobot

$20 Off Animal-Shaped Pool Toys

Poolcandy

There's plenty of summer left to spend lounging in the pool. Poolcandy's 48-inch, animal-shaped rafts are all on sale for just $20. Get an oversized floating narwhal, llama, giraffe, or unicorn.

Shop: Poolcandy

$75 Off the Gravity Blanket

Though many people find weighted blankets to be a calming respite for anxiety and sleeplessness, the hefty comforters usually come with a hefty price tag. Amazon doesn't usually have many weighted blankets on sale, which makes today's Gravity Blanket deal particularly exciting. You can get the 15-pound, 20-pound, and 25-pound versions of the Kickstarter favorite for just $175 today—a $75 discount. The upgraded cooling version (in 15-pound20-pound and 25-pound options) is also discounted at $187.

Shop: Gravity Products

$80 Off a Keurig Cappuccino Maker

Keurig's K-Cafe single-serve K-cup coffee maker

K-cups make more than just regular ol' coffee now. The Keurig K-Cafe allows you to make lattes, cappuccinos, and other frothed milk drinks with any K-cup pod. It brews 6 ounces, 8 ounces, 10 ounces, or 12 ounces of coffee at a time, and its water reservoir holds about six cups' worth of water. The machine alone is currently $100 (44 percent off), or you can get a bundle with the machine and a 24-pack of K-cups for $110.

Shop: Keurig

Up to 67 Percent Off Method Cleaning Products

Stock up on hand soap, dish soap, laundry detergent, and other household products from brands like Method, Mrs. Meyers, Air Wick, and more. The best deal is on Method's laundry detergent packs: You can get a two-pack good for 84 total loads for $13, a 67 percent discount. You can also get a six-pack of 28-ounce Method hand soap for $19, a 60 percent discount, as well as discounts on Hefty freezer bags, Reynolds plastic wrap, Mrs. Meyers candles, and more.

Shop: Household Products on Amazon

35 Percent Off KIND Bars

KIND

You can get 35 percent off boxes of KIND snack bars today. That includes 32-count boxes of KIND's new nut-butter-filled bars—available in almond butter or peanut butter—as well as 12-count boxes of classics like the Dark Chocolate Nuts and Sea Salt bars and Peanut Butter Dark Chocolate bars.

Shop: KIND

Up to 40 Percent Off Outdoor Gear From Marmot and CamelBak

Marmot Magus men's lightweight waterproof rain jacketMarmot

You can save big on pricey outdoor gear from brands like Marmot right now, provided you're willing to buy cold-weather gear—like a sleeping bag rated for 15°F or down jackets—in the middle of July. There's also plenty of lightweight rain gear to keep you dry this summer, including a women's rain jacket that's discounted almost $70, a men's rain jacket that's 40 percent off, and waterproof pants for $60. Plus, there are several CamelBak water bottles available for cheap.

Shop: Outdoor Essentials on Amazon

30 Percent Off a '90s-Themed BarkBox Package

BarkBox '90s Throwback dog toy bundleBarkBox

Prime Day isn't just for spoiling yourself. Give your dog a little love with BarkBox's supersized '90s Throwback toy box. The box comes with one bag of treats and four toys: Ko-Gnaw-Mi Code Controllers, a Pawlaroid Camera, a Smell-O-Vision TV, and a Squeaky Wonder Keyboard. It's just $25 off today, an almost $11 discount. Different versions of the bundle are available for both small and large dogs.

Shop: BarkBox

Great Savings on Wireless Headphones and Earbuds

There are a ton of wireless headphones, earbuds, and sound systems on sale during the last hours of Prime Day. Get Bose's true wireless earbuds for just $39 (a 22 percent discount) or get Anker's version for $60 (a 25 percent discount, but this is a Lightning Deal, so it may sell out soon). Beats Solo3 over-ear headphones are a steal at 53 percent off—they're $140 right now, or $160 off—while Bose SoundLink headphones are currently $159, or $70 off retail price. There are also a ton of wireless speaker deals, like 40 percent off these handsome AOMAIS bamboo speakers, now $48.

Shop: Headphones, Earbuds, Speakers

Up to 44 Percent Off Facial Cleansing Brushes

Foreo

If you've ever been tempted to make your face-washing routine more high tech, Prime Day is the day. You can get sonic exfoliating gadgets like the FOREO LUNA for 35 percent off, bringing the total down to a more palatable $90. Clarisonic facial cleansing brushes are available for even bigger discounts of up to 44 percent—the Clarisonic Mia Prima, normally $130, is also just $90.

Shop: Clarisonic and FOREO

20 Percent Off Just the Cheese Snacks

Crunchy cheese? Yes please. Just the Cheese (which makes 100-percent cheese snacks, as the name implies) is knocking 20 percent off the price of its variety packs, which come with 12 packs in four different flavors. Each pack comes with two bars, so technically you get 24 crunchy cheese snacks with each order. For your $22 sale price, you get four packs each of aged cheddar, mild cheddar, grilled cheese, and jalapeño cheese flavors.

Shop: Just the Cheese

50 Percent Off One Item From Amazing Baby

If you're in the market for a swaddle, plush toys, or other baby product, Amazing Baby is offering first-time customers half off any one item with the promo code 50Welcome. If you're buying for someone else, go with the three-piece gift set.

Shop: Amazing Baby

Competing Deals From Other Retailers

Amazon's competitors are determined to get in on the Prime Day shopping madness, so you can get big discounts at other retailers right now, too.

At Macy's, you'll want to use the code SHOPIT to get 25 percent off Black Friday in July deals. You'll also want to check in on Target's daily deals for July 15 and 16, because they're even more dramatic than usual right now—especially on Target-exclusive brands and products.

If you're heading to the great outdoors this summer, pop into Igloo's cooler sale: You can get 50 percent off the brand's Sportsman waterproof coolers (they come in bag or backpack form) with the code SPORT50.

And if you're in the market for a new mattress, Allswell's wildly popular mattress options are 15 percent off through Wednesday with the code JULY15. For bedding, check out Brooklinen's sitewide 20 percent off sale—no offer code required.

To see all of Amazon's current deals, head to the site's Prime Day landing page.

Expired: 20 Percent Off Neato Botvac Robot Vacuums


Neato

In one of Monday's Lightning Deals, the Neato D7 robot vacuum is on sale for 20 percent off from 1:15 p.m. Eastern Time/10:15 a.m. Pacific to 7:15 p.m. Eastern/4:15 p.m. Pacific on Monday, July 15. It's now just $530, or $300 off the retail price. Note: This deal has now expired.

Update: Now, the Neato D4 is on sale as well: For Monday night, it's 20 percent off from 6:35 p.m. Eastern/3:35 p.m. Pacific to 12:35 a.m Eastern/9:35 p.m. Pacific. It's $320, compared to a retail price of $530.

Shop: Neato

Expired: Up to 38 Percent Off SodaStream Bundles

SodaStream

SodaStream is offering discounts on several of its models for Prime Day. You can get the most basic SodaStream, the Jet, for $50, or upgrade to a bundle with three carbonating bottles, two carbon dioxide cannisters, and two Fruit Drops flavor bottles for $80. You can get SodaStream Fizzi electric sparkling water maker with three carbonating bottles, two carbon dioxide cannisters, and two Fruit Drops flavors for $120. Meanwhile, outside of the Amazon ecosystem, Target is offering its own limited-time SodaStream deal: You can get a Fizzi with one carbonating bottle and one carbon dioxide cannister for $90, a discount of 25 percent. (Note: The Mental Floss office in New York City has its own Fizzi, and it's well worth the upgrade for the one-touch electric carbonation.)

Shop: SodaStream

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