If you have won multiple auctions or purchased with "Buy it now", we do offer combined shipping.  if you click on your shopping cart to see your items "awaiting payment", there is a link at the top right that you can click that will send us a message to combine your invoice.  it is titled "request invoice".  this is easier than sending us a message through the message system.  if you click that link, we are able to invoice through the mobile app and not have to be at a PC and shuffle through multiple sales.  clicking that link will allow us to go straight to your invoice.