> I've yet to try taping a return envelope to a large box, but it seems like the postal service would accept it and charge them accordingly, right? Sadly, I th

> I've yet to try taping a return envelope to a large box, but it seems like the postal service would accept it and charge them accordingly, right? Sadly, I think the USPS now refuses to deliver those, after a rash of people taping return envelopes to cinder blocks a few decades back.