Monday MIRs are brought to you by Christina from Northern Cheapskate. Her passion is helping people take control of their finances through coupon-clipping, freebie-finding and frugal living strategies. Crest, Scope, and Oral-B. Get $15 back by mail wyb $50 in Crest, Scope, or Oral-B products.  Purchase must be made in a single transaction between 11/25/12 [...]