Hi!
I've been selling things over the past couple of years now. Ebay can be very fickle, meaning that what's hot one month, will stink the next. Your best bet is to do what others here stated- start off by selling some of your family's stuff first. That way you don't have any money invested in it.
Here are some other tips:
- Start your prices low, people love to think they're getting a bargain and will usually end up paying much more
- Check out USPS dot com for shipping prices. Also get a scale from your post office, walmart or ebay.
- Take good pictures. You can put in your own for free. Photobucket is a great place if you don't have your own site to use.
- Use your title for any keywords people might be typing in to search for such as boys, size 5, sweater, Gap, winter. Avoid using words like awesome or fabulous unless you have extra room.
- Check out the message boards there. My favorite is the Childrens clothing board. Usually lots of experienced people to help you.
- Download Turbolister to help you list your auctions. Very easy and that way you can do a little at a time.
- Set up a paypal account if you already haven't.
Hope some of this helps!