What can be done to curb whining in a 6-1/2 YO?

My 6-YO daughter whines (or "whinges", if you're British) about EVERY LITTLE THING. "My pants are too short/long!" "My seatbelt isn't tight enough!" "My barretts aren't even!" "My shoelaces aren't tight enough!" The list goes on and on, and it's driving me crazy. She just whines and cries about every silly little thing, and it's making her not fun to be around. Is there a better way to deal with this?