A belated conclusion, but a conclusion nonetheless.
Day 24: Favorite Energy Type
Of the standard energy types have to go with electricity. Always been more fond of the direct, right-in-your-face properties of the lightning bolt compared to a fireball, not that I would eschew using the old ball of fire in the right circumstances.
Of the more exotic energies, force is iconic for good reason based on the famous spells based on the type.
Lately, Super Genius Games' The Genius Guide to Hellfire Magic for Pathfinder RPG has tickled my pyromaniac self with their planar-tinged take on a cosmic "Fire Plus" energy type utilizing some properties of Force magic. Contradictory you might say, but the execution works very well with the literary precedents of hellfire.
Day 25: Favorite Magic Item
The simple Sword +1 (or Weapon +1) is worth mentioning because it represents one of the first permanent magical items groups will acquire. It's ubiquity and initiate status often means it's relegated to a backup or sold off eventually, but consider magic is often only laid upon weapons of exceptional or masterwork quality and magic itself preserves an item from wear, these swords and weapons could be centuries old and potential heirlooms. There humble enchanted arms hold untold histories.
Day 26: Favorite Non-magic Item
Flammable oils, if not alchemists fire (does an alchemical good count?). Either way, use oil to light your lantern (much more suitable for an enclosed dungeon than a torch), use it to grease a creaky hinge, use it as an oil slick, use it to light your foes on fire (especially trolls), the list goes on.
Day 27: A Character You Want to Play in the Future
See Day 9 about the archivist, but otherwise I wouldn't mind reactivating some old characters from abruptly halt games (ones due to flaky DMs or groups that just disband after a while).
Day 28: A Character You Will Never Play Again
Can't think of any. Would I play a character that didn't work so well the same as before? Unlikely, but little about characters I've played makes me adverse to give their character sheets a few more notches.
Day 29: What is the number you always seem to roll on a d20?
I roll low when it should be high, such as during attacks (THAC0 or BAB, doesn't matter) and high when it should be low (stat and proficiency checks in 2E). True story.
Day 30: Best DM you've ever had
The one running the good game I'm in right now.
Not a facetious answer, a good DM/group/game combination is harder to come by than one who has a good group would often realize. Glad to be gaming.