If you're looking for diaper deals, check out this coupon: $1.50 off Luvs diapers at Target. (And unlike the recently-offered Huggies coupon, there is no limit of one coupon per transaction.) The coupon can be printed as many times as you'd like, and is good through 2/8/08.
For a more convenient way of printing the coupon, use this coupon generator. The Luvs coupon is at the bottom of the page--just enter the number you'd like it to print. (You have to sign up before using the generator, but it's free.) While you're there, you might want to check out the Huggies coupon (top of the list)--it can still be used through tomorrow.
Keep in mind that these are store coupons, so they may be stacked with manufacturer's coupons.