How easy is it to sell things on eBay?

It is very easy its self explanatory as you go along, you choose the options you want and how long you want to list it for etc. As for postage, go to the post office with the item you are selling and ask them to weigh it for you as you want to know how much its going to cost. You choose how you wish to mail it recorded delivery etc. Ask them how much it will cost via the shipping method you have chosen and then list it at that price for postage.Remeber though if you want it to make a certain amount either put a reserve price on it so it goes for no less than that, or make that amount your starting bid.