101 Uses For is popular and let's hope it stays that way. Our second book is presently called 101 tips for self sufficiency; we will certainly dip into this section for ideas. So post away and let's try and get at least one thread up to 101.
I have the opposite problem and regularly get massive bags of them from freecycle to post my ebay stuff in. I use a thick black marker to hide the original address and then stick a piece of paper with the new one over the top.