I think I've finally figured out how to sell things on eBay. Previously I've had real problems, with items hanging around for ever and then being bought by people from far away places with no Paypal. Not good.
Last night I put a couple of things up for sale and I tried a different technique. I just checked to see how much the last couple of identical items had gone for and then placed my items with "Buy it Now" prices five pounds or so less than these figures. Both items were sold by the morning, so it seems to work. Furthermore, because I've used Buy It Now it seems that buyers "Pay for it Now" which means that you aren't hanging around waiting for the money before you can ship the items.