Funny YA Lit

Hello all. I've noticed that in recent trips to the library I'm long picking up the latest fantasy book or the "social problem of the week/month" book. I'd like to liven up my choices with some YA humor like Fat Kid Rules the World or Louise Rennison's The Confessions of Georgia Nicholson. That sort of variety. Do you have any suggestions? Your help is appreciated immensely.