Linda Lightman (center) and her warehouse

This holiday season, Linda Lightman has plenty to celebrate. The Philadelphia-area based labor attorney-turned-full-time eBay seller projects that her eBay store, Linda's Stuff, will generate $7 million in sales in 2010. The mother of two began selling on eBay at the beginning of this decade by auctioning off her son's used video games—the local store would only take them for pennies on the dollar, but she could sell them for much higher on eBay Today, she and her husband Fred—another former attorney who quit his desk job six years ago to help run Linda's Stuff full time—oversee a 12,000 square foot office in Horsham, Penn. that currently houses 50 employees. Linda's Stuff features high-end designer clothing, accessories and home goods, from Salvatore Ferragamo mens shoes to Chanel boucle wool suits to Gucci luggage to costume and fine jewelry.

Here's how it went from video games to Vuitton: After making an impressive return on those games, Lightman began auctioning off her cast-off designer goods. Soon enough, her friends were asking her to sell theirs, too. "When I started, I hadn't even used a digital camera before," says Lightman, on the phone from her office. She began charging people a consignment fee and was able to hire a photographer, then a shipping person, and so on. Eventually, the tiny eBay store grew into an international operation. "Now I represent consignors all over the world," she says. Further, with over 30,000 items available on her site at any given time, Lightman among eBay's largest sellers of clothing, shoes and accessories.

It's easy to understand why sellers remain loyal to Lightman. The accidental-entrepreneur decided early on that she would waive all shipping and additional fees from her consignors. So when a consignor puts in a request to sell something on Linda's Stuff, a pre-printed label is shipped to her house. Linda's Stuff then takes 35 percent of the profits from any sale under $1,000 or 25 percent of the profits from any sale over $1,000. This simple process has allowed Lightman to expand beyond individual consignors. Now Linda's Stuff works with overstocked retail stores and industry manufacturers that need to load off extra inventory.

Buyers are also pleased—and not just with the quality and authenticity of the product, but also with the prices. Although the store sells high-ticket items like $15,000 Hermes bags, it also carries more accessible, but still high-design, contemporary brands such as Theory, Milly and even a bit of J.Crew. "I never want to exclude anyone from my store," says Lightman. She also starts auctions a bit lower than many sellers. If the demand is there, the price will escalate, she says. For example, we recently watched a black quilted Chanel handbag that started at $299 and sold for $1.152.77 after 42 bids.  "I want to offer the best prices and best selection," she explains. "I want people to know that they're getting a real deal."
 
As for her own closet treasures, ironically, Lightman says that it's the last thing on her mind these days. "I'm so passionate about what I do that I rarely think about buying stuff for myself anymore."

Here's What We're Watching on Linda's Stuff Right Now:

1. Kenneth Jay Lane Large Seahorse Necklace (starting bid, $29)

2. Tory Burch Sequin Dress (starting bid, $69)

3. Burberry Fur Vest (starting bid, $199)

4. Mulberry Metallic Leather Braided Handbag (starting bid, $199)

5. Jimmy Choo Black Leather Boots (starting bid, $199)

Lauren Sherman is a fashion and culture writer based in Brooklyn. She spent the last four years on staff at Forbes.