Storing Onions (& Potatoes)

Saw this on the internet last fall and tried it and it really works. Take an old pair of pantyhose and tie onions in them, knotted between each one. Hang them in a cool place like the garage and they'll keep for months.  These have been "hanging around"  for 5 months now.  Just remember, when you want an onion, snip below the next knot.

Next fall when stuff is really cheap, I'm going to try potatoes.

I wonder what other vegetables you could do this with?