I have these new dress shoes -- they're flats -- and they really rub the top part of my heels, and on one side it also rubs my pinky toe. I'm wearing them to prom tomorrow night. I have some Dr. Scholl's moleskin, but I'd really rather not put it on my feet because I'm hoping I'll be able to take them off at some point, and that's just not attractive. Is there -anything- I can do?