Here's another good coupon page to keep on your bookmarks. If you're near a Pilot Travel Plaza, you can get a coupon for a FREE 16 oz. hot beverage or $1 off Muscle Milk (quite possibly the grossest product name I've heard recently, but if you like it...)
This coupon is good enough once, but I sure don't see any limit on how many times you can print and use it before the end of October. Enjoy!