Reply #6: As DaveinMD said above...

[G Hawes]

use the return mail envelopes and stuff them with whatever you like (or even send them back empty) and that makes the initial sender have to pay for them.

I do this all the time with junk mail. I'll take one junk mail sender's crap and stuff it into the return envelope of another junk mail sender's crap and vice versa, or I'll stuff some other junk mail advertisement into the return envelope, or I'll just seal the return envelope and send it back empty. In all cases, the original junkmail sender has to pay for it.

Silly? Perhaps. But I figure that if they're going to send me crap, I'll make them pay for it and also engage their resources in opening up the return mail that I send back which is full of junk mail, just like theirs. It takes me all of five seconds at the mailbox, so it's worth it.

:D