I always try to ship the cheapest option. I will also refund the difference if I find a cheaper way.
If you buy multiple items, I will do combined shipping. Once the items are over, I will send you an invoice reflecting the correct shipping.
I disagree with Ebay forcing sellers to accept all returns in their policies.
Ebay is not walmart.
I will do a return if there is a problem with the item and it is returned the same way it was received.
If you return the item without there being an issue, there will be a 20% restocking fee.