Make it possible for us to have Coupon Code options on some products and not others. Currently it's global.
It should be possible to have the option to enter a coupon code only on those products for which you have a coupon code available. As a consumer, I always feel like I'm missing a good deal when there's a box for Enter Coupon Code and I don't have a coupon code or even know if one is available. I have one product where I would like to offer a coupon code, but don't want all my other customers buying other stuff to feel they are missing something. There's no reason that this should only be available globally under Setup. Why not give us the option to make it apply or not apply (i.e. the Enter Coupon Code box) to a specific product if we like.