At Walgreens, buy one supplement item and get a second item of equal or lesser value for free. (Some items are buy one, get a second item 50% off. Eligible items are marked; add two items to your cart to see the discount.) Even better, sign in and proceed to checkout to use the clippable coupons for up to an extra $3 off. (Coupon amounts are marked.) Shipping adds $5.99, or spend $35 or more for free shipping. (In-store pickup may also be available.) Eligible items include Nature's Bounty, Optimal Solutions, and Osteo Bi-Flex Vitamins. Some exclusions may apply.