You are allowed to sign up for this every couple of months or so. I signed up not too long ago (although I can't remember exactly when) and it let me sign up again. It seems to take forever to receive it (it comes snail mail). If you have signed up for it and can't remember when, go ahead and try again, it will let you know if you are not elligible. Most of it is cleaning products from Proctor and Gamble, but they are really good coupons (better than what you find in the newspaper). And cleaning supplies are so expensive, who couldn't use a coupon? Go here to sign up.