The Fourth of July is the epitome of summer—and after several months spent indoors, you need some outdoor fun more than anything. Check out these 15 summer must-haves while they’re on sale and save an extra 15 percent when you spend $50 or more with the code JULYFOURTH15.

1. CARSULE Pop-Up Cabin for Your Car; $300 (20 percent off)

Mogics

This tent connects to your hatchback car like a tailgate mobile living room. The installation takes just a few minutes and the entire thing stands 6.5 feet tall so you can enjoy the outdoors from the comfort of your car.

Buy it: Mental Floss Shop

2. Mosquito Killer Lamp; $30 (25 percent off)

Kinkoo

If you just so happen to be one of those unlucky souls who attracts a suspicious amount of mosquitos the second you step outside, you need this repellent lamp to help keep your arms and legs bite-free. It uses a non-toxic combination of LED lights, air turbulence, and other methods to keep the pests at bay.

Buy it: Mental Floss Shop

3. Super Shield Mosquito Repellent Electronic Watch Band; $17 (57 percent off)

Safe Touch

While a lamp is a great non-toxic solution for keeping bugs at bay, active individuals need a bug repellent that can keep up with their lifestyle. This wrist wearable keeps you safe from mosquitoes anywhere by using ultrasonic sounds to drive them away.

Buy it: Mental Floss Shop

4. ZeroDark 3-Piece Tactical Set: Flashlight, Lantern, and Headlamp; $20 (66 percent off)

Audro

If you want your summer to be lit, this set will do the trick. All puns aside, this trio of LED brightness is perfect for camping fun and backyard parties, or it can be stored in the car for emergencies.

Buy it: Mental Floss Shop

5. Outdoor Collapsible Cooler and Camp Table Set; $64 (27 percent off)

First Colonial

Cookouts are easy with this cooler and table set that chills your drink until you're ready to pop it into one of the four convenient cupholders. Bring this set camping or out by the pool for convenience anywhere.

Buy it: Mental Floss Shop

6. Trident: Underwater Scooter; $550 (21 percent off)

Geneinno

If you’ve ever dreamed of better mobility while exploring the water, you’re not alone. The Trident underwater scooter, which raised over $82,000 on Indiegogo, can propel you through the water at up to nearly 6 feet per second, which isn't that far off from how fast Michael Phelps swam in his prime. The battery on it will last 45 minutes, allowing you to traverse with ease.

Buy it: Mental Floss Shop

7. Go Portable Solar Oven; $119 (14 percent off)

GoSun

Bake, roast, steam, or broil anywhere you bring this portable oven. Measuring in at just over a foot long and weighing only two pounds, the oven will work in most daytime weather conditions and can hold around 13 ounces of food.

Buy it: Mental Floss Shop

8. 3-in-1 Waterproof Bug Zapper Lantern; $25 (50 percent off)

3P Experts

Mosquitoes tend to be a big problem at night, partly because it's hard to swat in the dark. This lantern will light the area and zap mosquitos from nipping at you in the process.

Buy it: Mental Floss Shop

9. Urban E-Skateboard: Basic Version (Orange); $120 (73 percent off)

Urban Rover

This e-skateboard is perfect for getting around during the summer. You'll catch a breeze while you’re cruising on the battery-powered platform and won’t break a sweat when you pop the compact board in your bag.

Buy it: Mental Floss Shop

10. H2 Headlamp: Waterproof, Rechargeable LED Wide 180° Angle Headlight; $37 (26 percent off)

One80Light

Camping, car troubles, and sports all pose a problem at night. This LED headlight will light up your surroundings across a 180-degree radius for prime visibility, meaning your outdoor activities won't have to stop when the sun sets.

Buy it: Mental Floss Shop

11. Whirlwind Cool Bladeless Mini Fan; $22 (63 percent off)

Whirlwind

This portable fan comes in a powerful handheld size so you can keep cool while on the move. Unlike other portable fans, this one has a sleek, bladeless design and features three different speeds.

Buy it: Mental Floss Shop

12. Bladeless Personal Fan; $22 (63 percent off)

3P Tech

This bladeless fan won't just keep you cool while you work on your laptop—it also has a built-in rechargable battery that you can use to charge your phone.

Buy it: Mental Floss Shop

13. MOGICS Coconut: Portable Waterproof Light; $37 (24 percent off)

Mogics

This portable light is designed to adapt to your lighting preference. It self-inflates in a few seconds and can bounce, get wet, and set the mood.

Buy it: Mental Floss Shop

14. Lunatec 1L Hydration Spray Water Bottle; $25 (21 percent off)

Lunatec

A water bottle can do more than hydrate you. This one has a spray nozzle that can create shower, stream, and mist patterns for doing dishes while camping, sharing a sip without sharing germs, and washing off those muddy shoes after a long hike.

Buy it: Mental Floss Shop

15. Sport Force Hydration Backpack; $25 (68 percent off)

It's All Goods

Hiking enthusiasts know how important it is to stay hydrated, but carrying around awkward jugs of water is a hassle. This unique hydration backpack can be filled with two liters of water and features a convenient drinking nozzle that extends to the user's mouth. Now, you can replenish those fluids without breaking stride.

Buy it: Mental Floss Shop

This article contains affiliate links to products selected by our editors. Mental Floss may receive a commission for purchases made through these links. If you haven't received your voucher or have a question about your order, contact the Mental Floss shop here.

Whether you openly admit it or desperately try to hide it, it’s an undeniable fact that every living and breathing human being farts. And while passing what you thought was going to be silent gas only to be wrong in certain situations can definitely be embarrassing, there’s something undeniably humorous about flatulence—no matter your age.

If you do love a good fart joke, you’re in good company. The very first recorded joke, which was written by the Sumerians and dates all the way back to 1900 BCE, was about—you guessed it—breaking wind. And some of the world's great thinkers, from William Shakespeare to J.D. Salinger, have slipped a fart joke (or 10) into their work.

In this episode of The List Show, we're sniffing out 30 fascinating facts about farts—from why humans expel gas to how often the average adult squeezes the cheese. You can watch the full episode below.

For more videos like this one, be sure to head here and subscribe.