Qdoba is running a deal right now were you can build your own burrito (or something else - but I hear burritos have the best coupons) and end up with high value coupons at the end. You can play every day for 6 weeks. The coupons are only good for 2 days, so you can't really stock up. But yesterday and today I won "free entree with purchase of a drink" coupons. So Geof and I have free dinner tonight =)
Give it a shot - and let me know how you do!