Anyone done this? I have a mama on DS who is interested in matching girl clothes. I would so much prefer to sell my twin lots as sets so I want to give her a good price, but I'm clueless as to even a guess of what shipping would be. Is fedex or UPS the way to go over USPS for larger stuff? Has anyone shipped, say a diaper box full of clothing? Any tips or cost estimates would help me out at this point. TIA!!!