No address to ship to, GRRRRRR

Third or forth time this has happened. I sell a part to a member here and he/she decides to paypal through the "family and friends" option so I don't pay the fee ( although I would never ask for that ). Paypal sends me notice of money received via email but... The notice for that type of payment isn't going to include the senders mailing address.
Why this always happens on Friday?, damned if I know.
With item boxed and "almost" ready to go I sit and wait as long as possible before going to town.
Soooooo, I'll be going into town again Monday.
It's really nice out today. I hit the bank, Staples, Ingles, Tractor Supply, drove past the post office twice. I figure Monday will be cold, raining... just DAMNIT ! rant over