I have 2 envelops that are set up for certified mailing (taxes) by tax accountant. They can be mailed either certified mail at PO, or at UPS. Either way, I need a receipt. I also have a box (5" ht, 11 by 11") that can go slow boat, but I need a receipt (UPS or PO) and an envelop with a mask and some fabric (4th item) The last item won't be ready for mailing till Tuesday am - so all could be picked up then.