Gardening - Recycle Nylons
Take an old Nylon, wash them, cut the leg out. Put the onion in the nylon, put a knot in between each onion and repeat. This will keep the onion fresh. They will not touch other onions. Tie the end in an knot so that you can hang the nylon on a nail to hang the stack of onions up.
You can also use nylons to tie around plants so that they can stay in place. As the plants grow, the nylon grows with it.