A couple of months ago I was cleaning out a closet and I found my old stamp collection from when I was a kid. It was fun to look through and see so many stamps from nations that no longer exist.

I looked on some auction sites, and it seems like you can buy the collections of the recently deceased at pretty cheap prices. I don't know if they're worth the money, but if you're just collecting for fun, and not for profit, it seems like a good way to beef up your collection.