Dear Woot Staff!
I've got several my t-shirts published, so I have several coupon codes. They are all the same (ArtistCompShirt: $20 off and free standard shipping). Is it possible to aggregate several of them into one big coupon? So I have for example not 3 coupons $20 off, but one $60 off.
I am asking this because I want to buy a canvas and want to use my coupons on it.