I'm changing rooms this year, and the lockers and shelves in my new room are in horrible shape, so I want to paint them (yes, I have permission). The last time I painted my lockers, I used spray paint (specifically Rustoleum "regular"), and they turned out fantastic, but man, what a mess! I had to mop for days afterwards to get the "overspray" off the floor, and that was despite masking off for about 4' all around the lockers! In addition, I want to paint my wooden shelves. I need a paint that would be good for both, and would hold up to 3rd graders. I can't sand my shelves, because there is probably lead paint on them from years ago - it's safer just to clean, then paint them. I'm looking for not-too-expensive paint that will work for both the lockers and the shelves. Technique tips wouldn't be turned down, either! Thanks in advance!