Coupon Date Limit from Admin
I'd like to be able to limit all coupon submissions to say 30 days, 60 days, or anything really. That way people couldn't post a coupon for three years (for example) and then keep editing the same coupon with new information. That way they could be maxed at 120 days. It would also be cool to be able to leave it blank for the coupon to have a perpetual lifespan.