Get kid to gut pumpkin so you don't have to touch the gooey grossness
Dress kid in costume and hope he doesn't get bored with it in twelve minutes...and don't show him the candy you're giving to OTHER kids or you get this face
Get cute neighbor kid (in this case, Isa) to stand next to your kid and pose for obligatory pre-candy shot
Run behind kid and at every house he hits, remind him to say "trick or treat" and "thank you" when the goods are given.
Let kid eat one piece of candy, send kid to bed, and then raid his stash for the chocolate. After all, 2 yr olds don't really need that much sugar, do they?