hi weini...here are some websites that u can sell clothes
--> www.cozycot.com (i sold a dress at cozycot.com previously but i lied about it being brand new as i only wore it once. I washed it and wrapped it in a plastic bag before mailing it out too. Sold it at quite a low price...but better than selling to 'garang guni')
--> www.yahoo.com.sg (go to the shopping section on the left hand side of the website....and it will direct you to gmarket.com. I only bought things there before..but didn't sell anything there before because it is more complicated for sellers to register as they need to safeguard the interests of buyers. You'll have to give them bank account details, etc. But i kinda like to shop at gmarket because the helpdesk are friendly and there will be a delivery status to check whether the person has already mailed the item out.)
--> www.wholivesnearyou.com (if you still have the account...i sold quite a number of items there...but people will usually buy more IT products online instead of buying clothes online. Clothes are not as easy to sell as compared to IT products. I would say that the success rate of selling clothes online= 0 to 30%)
--> you can also go online and search for people selling clothes e.g blogspots. Coz they might be willing to swap the items.
--> some tips to sell it faster= post a nice picture and keep posting the entry over and over again so that there is a higher chance of people viewing it. Remember to add your contact details too.