Does anyone know the BRU/TRU coupon policy? I got their mailer yesterday and there was a $5 off laundry detergent store coupon. I was wondering if I could stack this with a MFR coupon and my Groupon and end up getting one of those giant things of dreft for like $10 OOP. Do they have a universal policy or does it vary by store? I can't find anything consistent online.