Drawing, writing, roleplaying, videogames, television... I think couchpotato-ing in general should cover everything that interests me, but I'm also called upon to exert myself physically as well.
I'm thinking I'll have an awesome zombie costume, and then a lame sheet-ghost over it. When some kid thinks he's being so cool and rips the sheet off, BAM! Zombie apocalypse. Though rather than brains I'll settle for his candy.