*Update: Extended through 5/31/10. They have changed the purchase by date to 5/31/10 and the mail in date is 6/15/10.
If you like Proctor & Gamble products, you will want to participate in the $100 coupon book deal. This is a mail in offer that I participated in last year. It was well worth it! If you spend $50 on Proctor & Gamble products between 2/1/10 and 4/15/10, you can mail in to receive $100 in coupons. The $50 can easily be reached since the total is before coupons. It can be done in multiple transactions; just start saving your receipts!
Not sure if you want to participate? Check out the list of coupons included in the $100 book.