I keep an old pallet around for a place to put engines or transmission on when they are out of the truck. Keeps the engine off the concrete, and dry when the cement floor gets wet.They are also a pretty good source for hard wood for wood working projects. I once made a antique style wood ice box out of old pallet hardwood. It took forever removing the nails without breaking the wood. I wish you could find nails like that for construction. They'd never come out!