Postal money order?

I mainly deal M.O.'s., or in person. Have taken one check and waited till cleared before sending parts. I've never had a problem with M.O., and that's how I'll continue. When I receive the M.O., I ship the parts and e-mail the buyer a tracking number. I've had buyers send certified and e-mail the tracking number. It may cost a couple dollars more for certified, but so does pay pal. Not dealing with pay pal. If the buyer doesn't want to deal in M.O., then parts will sit till someone comes along. If that doesn't happen and they start taking up too much space, as hard as it is, they go for scrap. Everyone loses, but until sold they're my parts and I can do what I want with them. Buyer is not going to tell me how I'm going to sell him my parts.