The Sunday Coupon Preview is a great site for getting a sneak peak at what coupons are going to be in the upcoming Sunday paper. By checking out the site you can get an idea of whether or not you want to purchase extra papers that week. And let me tell, you, purchasing extra papers is often well worth the money! Last weekend I paid $5.50 for 4 papers and have saved approximately $35.15 so far from coupons it contained! I will have specific details in my week in review post coming soon.
The upcoming papers will include one Red Plum and one Smart Source.
Just a warning though, coupons do vary significantly from paper to paper. (I get both the Seattle Times and The Everett Herald because of this! The Times doesn't contain the Red Plum inserts, and the coupons in the Smart Source inserts are often different in each paper!) That being said, The Sunday Coupon Preview is worth checking out. Just don't expect the coupons to be exactly what your paper will contain.