In case you weren't obsessively refreshing mentalfloss.com all week, here's what you missed:

1. 18 Famous TV Roles Originally Played by Someone Else, by Stacy Conradt
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2. Walt Disney's Secret Tragedy, by Stacy Conradt
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3. Why Are Textbooks So Expensive?, by Ethan Trex
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4. What the Heck Is Sea Foam?, by Matt Soniak
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5. Why Does Muammar Qaddafi Own a Mansion in New Jersey?, by Haley Sweetland Edwards
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6. 7 Hilarious Garfield Variants, by Chris Higgins
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7. The Personal Items 6 Famous Dictators Left Behind, by Kara Kovalchik
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8. 15 Geeky Stained Glass Masterpieces, by Jill Harness
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9. The Killer Who Inspired Three Classic Horror Movies, by Stacy Conradt
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10. Star Trek Bloopers, by Chris Higgins
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11. A Tribute to the Grilled Cheese Sandwich, by Miss Cellania
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12. 14 X-Ray Images as Art, by David K. Israel
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And don't forget Will and Mangesh are bringing the Mental Floss Trivia Show to Memphis this week! RSVP now and get a free t-shirt.