While going back through a lot of old bookmarks I rediscovered a rather cool idea: USB Dead Drops.
The idea is simple; you just “install” a USB thumb drive into a public space so anyone can come to it, plug in, and share data. No oversight, no NSA watching over your shoulder, no barriers of any kind.
Of course, you have no idea what has been left on this thing (could be VERY bad) and you can even leave your own stuff for the next guy or gal. One comment referred to the whole concept as a ‘Glory hole for your laptop’.