After a few months or years of online auctions, you may yearn for something “bigger,” such as a Web-based store where you have more control over how you display and sell your merchandise and over how and where you can advertise. Once you reach this point, resist all urges to jump at the first appealing offer. First, determine which areas of business suit you best. Get trained to run a bigger enterprise and find the help you need to make the store happen. Your do-it-all-yourself days are now behind you.