As I mentioned early this morning, today is (roughly) our second anniversary. To celebrate, we're holding a 20%-off sale in the mental_floss store (excluding subscriptions). Just enter the code "blog" during checkout.

When you're done shopping, come back and read our five most popular stories, according to Google Analytics.

1. The Quarter Backs Quiz

July 2, 2007

Take Sandy Wood & Kara Kovalchik's "Quarter Backs Quiz"

2. 15 Reasons Mr. Rogers Was The Best Neighbor Ever

May 23, 2007
Read "15 Reasons Mr. Rogers Was The Best Neighbor Ever" by Mangesh Hattikudur

3. Ten Epic Halloween Costumes

October 11, 2007

Read "Ten Epic Halloween Costumes" by Miss Cellania

4. Five Ballpark Promotions That Went Wrong

July 24, 2007
Read "Five Ballpark Promotions That Went Wrong" by Jason Plautz

5. The LOLcat of Death

July 30, 2007
Read "The LOLcat of Death" by Miss Cellania