After you have sold a number of items on eBay via auctions (maybe just stuff that cluttered up your garage), you might consider opening your own store on eBay.
Stores have certain advantages: you can choose the name (as long as it is not taken yet), set the theme, obtain a permanent URL that you can use in advertising it, and list items very cheaply as store inventory (for data on the currrent fee structure, see http://pages.ebay.com/help/sell/storefees.html). Furthermore, you also gain access to certain tools, such as Traffic Reports or the HTML Builder.
There are also drawbacks in owning a store. First, there is a monthly fee (currently $15.99 for a basic store), and store inventory items generally do not appear in the main search (for details on this, see http://pages.ebay.com/help/specialtysites/sif-in-search.html), so you will still have to run a number of auctions and include a link in them to drive traffic to your store.
Therefore, you should not expect the world to beat a path to your eBay store the moment you open it.
Here are a few tips to help the new or prospective owner of an eBay store:
Pamela Bruce lives in Austin, TX. She has been beading since her teens. She is the owner of Love Beads Unlimited and sells the sterling silver and Swarovski crystal bead jewelry she designs and creates both in her eBay store (http://stores.ebay.com/LOVE-BEADS-UNLIMITED) and on her website at http://www.lovebeadsunlimited.com