Ebay?

Ebay has been around for some time but I haven't ever sold anything using it. I'm considering using it to sell some stuff. I ran into a lady who says she's amazed how much money she's made doing this. I'm willing to give it a shot. Does anyone have any experience with this? I friend of mine says his daughter is making big money on Ebay. They buy retro clothes, hire models and then resell the clothes for many times more than what they paid. Good idea but I just want to get rid of some extra stuff. It's just way too hot to hold a yard sale. This may be a good option. Too bad the market for baseball cards is in the tank.