Hang ladders from the ceiling so they don't hog prime storage space. The rollers on this simple carriage let you easily slide in one end of the ladder, then the other. The materials you'll need cost about $20 at home centers.
Plastic lattice works well for storing long lengths of miscellaneous pipe, trim, flashing and conduit. Just cut matching pieces, then screw 2x4 cleats to the ceiling and screw the lattice to the wall studs and cleats. Now you can quickly find those oddball leftovers instead of going to the hardware store and buying yet another piece.