Hi there, I currently sell polos on an auction site called trademe.co.nz..... I make a profit of approx $10-$15 NZD and pay only approx $18 each... Just trying to help you out with your decision on what type of things to sell (just look around on salehoo for the best supplier for RALPH LAUREN , Lacoste etc) Might be worth a look,
Hope this helps you out a little!