ebay research confirms that sellers overcharging for postage are a major

reason for buyers not purchasing items. I always charge postage at cost

(weigh your package and price it before listing the item) You should always

quote this rate in the listing for all buyers (domestic and overseas).

I also find that offering a postage discount for multiple purchases is a very cost

effective way of increasing your sales (it often costs no more to post 2 or 3

items in the same package than it does to post 1)