Old Sneakers as Ladder Bumpers - You could buy special rubber bumpers for the tops of your ladders to protect your siding or walls, but why? A pair of old sneakers (who doesn't have some!) and a little duct tape will do the job just fine.
Bubblegum and Duct Tape: Easy Mini Album Tutorial
HOW TO: Make a CD and duck tape purse, Recycle old CD's and DVD's