Coupons change over at the end of the month. Some will stay (and reset their prints so you can print more) and others will disappear entirely. If you see a coupon you want, print it now, just in case!
Cellfire (load those coupons onto your shopper cards!)
Coupon Network -- load those Catalina deals onto your cards and print those coupons!
SavingStar -- eCoupons to load to your card