How can I keep my gym locker smelling good? Some of the other girls' lockers smell disgusting and the smell is slowly getting into mine!?

I guess that proves it. Girls can stink just as bad as guys.

Arm and Hammer makes a "fridge fresh" stick on deodorizer.  It is round and uses a suction cup to mount it. It works well in all sorts of places beside just the refrigerator. I even use them in my garbage can. 

Febreeze probably would work best, or a box of baking soda....like one made for the refrigerator so it doesn't dump out!

how about a car air freshener