Pick yer poison:
On the Wall:
Keep the Girls/Boys of Loathing Calendar (+3 adventures/day)
Buy the Infuriating Painting (+5 PvP fights/day
Buy the Hanging Meat Orchid (you can pick 1500 meat/day)
On the Shelf:
Keep the Arcane Tomes and Whatnot (small Mysticality gain, uses adventures)
Buy the Sports Memorabilia (+7 PvP fights/day
Buy the Self-Help Books (+5 adventures/day)
Plugged in to the Outlet:
Buy the Soda Machine (you can get 1 soda/day)
Buy the Jukebox (you can listen to a chosen song 1 time/day for buffs)
Buy the Mr. Klaw "Skill" Crane Game (you can fish for a prize, 30% chance of winning, works in HC and Ronin)
On the Table:
Buy the Old-Timey Radio (you can listen 1 time/day for a random effect out of 4)
Keep the Potted Meat Bush (you can pick 500 meat/day)
Buy the Inspirational Desk Calendar (+1 adventure/day)
On the Floor:
Buy the Wrestling Mat (+3 PvP fights/day)
Keep the Tan-U-Lots Tanning Bed (small Moxie gain, uses adventures)
Buy the Comfy Sofa (you can rest to heal HP and MP, works in HC and Ronin)
In the Corner:
Keep the Hobo-Flex Workout System (small Muscle gain, uses adventures)
Buy the Snack Machine (you can take 3 bags of chips/day, choice of 3 flavors, each adds 30 to a stat for 10 adventures)
Buy a Potted Meat Tree (you can pick 1000 meat/day)