Q: I hear so much about people who started selling on eBay and eventually turned it into their full time business. Is it really possible to build a profitable business just selling junk on eBay? -- Alex K. A: If Fred Sanford were alive today, Alex, I'm sure he'd be earning his ripple money by selling quality junk on eBay. While it's also true that one man's junk is another man's treasure (I have a garage full of treasure to prove this point), your chances of building a profitable business sell.