Reese's Facebook page is giving away coupons for free Reese's candy up to 2.5 oz. They don't ask you to like their page and the coupon will be mailed. No idea how many coupons will be available daily, but you'll have many chances since the campaign runs through April 15.
Oh, you want more stats about it? The coupon will be printed on 100% pure Arkansas pine paper and the ink is hand-squeezed from free-range, organically grown blackberry bushes.