What do you do with the old skin that snake shed ?

[GoingPostal]

I usually keep the last one, or two, but throw away the older ones after a fresh shed.

Same, I usually hang onto a really good one for awhile and then toss when there's a new one. Seems like only the dumerils boa and hognose ever give me really nice ones, the rest trash them with water or poop or rip it up.