Hi. If you are mostly looking for school/play clothes, I have had great luck with ebay. If you're not familiar, once you get to the site, just type in dress and the size (3, 3T) if she is in between sizes, type in both sizes and search. You can also put in the search description, NEW, or NWT (new with tags). Also, be sure to read the sellers description of the condition of the item, and read the seller's feedback information. That is where you can find out how other buyers rate the quality of the items the seller has had in the past and the service (shipping time/cost). Remember too, that you need to figure the cost of shipping into the total cost of what you are buying. So if you only want to spend say $15 on a dress, and the seller has $5 for the shipping cost, you can really only bid up to $10 on the dress. The biggest thing is that you must bid on the item auction style, which means you have to keep an eye on the item. Each item has an end date, the BEST thing to do is to wait to bid until the last few minutes. As you get better at bidding, really until the last few seconds to place your bid. Otherwise, the earlier you bid, others who are new to ebay, will also start bidding and try to outbid you, which only drives up the price. It all only matters in the last few minutes/seconds. So really it's best to wait and if you see that the price has gone too high before the auction is over, just pass on that item. Belive me, you will find something else. I know that you can get exactly what you would like on ebay. I sell and buy on ebay, and love it. Gymboree is a big name on the site for resale, and Gap, but I know that you can find almost any name brand, and even store brands like Circo, etc. If you would like more info., just let me know. Good Luck!