If you haven't tried selling your work on Etsy http://www.etsy.com it is something you might want to think about, especially during the "off show" season. The first thing to do is visit their website and read the terms of use and the do's and don'ts of selling. If you are satisfied with the terms and want to sell there, head over to Paypal.com and open an account linking your bank account to paypal. Etsy utilizes Paypal as the method by which customers can make online payment. It takes a few days for Paypal to verify and set up your account as they verify information accuracy.
In the meantime register on Etsy with a username and password (caution: Your user name will ultimately show up in you etsy shop as your shop user name too, so if you're business name is Jim Bob Pottery you might not want to use cutiepie1966 as your user name, if you get my drift). Once registered you have an account and are now able to buy on etsy. (next post will discuss setting up a sellers acct. on etsy). Feel free to ask questions at any point.