Ledbury -- $75 for $150 in merchandise on Gilt City.
Limit 2 per customer (pay $150 for $300). May be used only for shirts.
Try the code FORYOU30 -- it got me 30% off. I don't know when it expires or who is eligible, but it brought my total to $105 for $300 in Ledbury. Not bad!
FORYOU40 gets you 40% off :P