What's Your Jeopardy! Dream Board?

Every Friday, I post a series of unrelated questions meant to spark conversation in the comments. Answer one, answer all, respond to someone else's reply, whatever you want. Very casual. On to this week's topics of discussion...
1. I just caught the classic episode of Cheers where Cliff Clavin appears on Jeopardy! The categories were all in his wheelhouse: Civil Servants, Stamps From Around the World, Mothers and Sons, Beer, Bar Trivia, and Celibacy. His amazing run ended in Final Jeopardy, when he blew $22,000 ("Who are three people who have never been in my kitchen?").
This got me thinking about my ideal Jeopardy! board. 20th Century Elections? College Mascots? Seinfeld Quotes? Sports Team Relocations? Discontinued Ben & Jerry's Flavors? Towns in North Jersey? What six categories would make up your Jeopardy! Dream Board?
2. What's the most important thing you accidentally slept through?
3. Here's a question for anyone with siblings. If you had the option to switch your birth order, would you? (If you're the middle child, would you rather be the oldest? If you were born first, would you rather have come later?)
4. And we'll end with something market research-y. Is there one topic you'd like to see mental_floss cover that we haven't already? Russian politics? Arctic wildlife? The origins of air hockey?
Have a great weekend!
[See all the previous Friday Happy Hour transcripts.]