Comment 6 for bug 947007

> there is already a bug report about this issue somewhere.

Omer was right, bug 692444 is the same. There's been work this month, too, though not linked to the bug yet:

  https://code.launchpad.net/~brandontschaefer/unity/one-trash-can

(Both bugs have some good discussion; there's a lot more on the other one, not that quantity is necessarily better. :)