Wow, that's great, Aerio! I saw some stuff on there that I wanted to get!
I've always wondered the theory behind the whole "coupon" thing. It's kinda weird to me that they'll give you a discount for brining in a piece of paper saying that you can get that item cheaper. Even though it says one per customer, You could print out a ton of those, make copies, whatever and just give them to family members or friends along with the money for the item so that you can get more of what you want.

I guess it's just to bring people to the store and while they're there, they might browse around and buy other stuff at regular prices too.