They usually always offer rotating deals like a Buy 1, Get 2 Free deal or big discounts on certain products. You'll find these deals listed on their homepage.
$1.99 flat-rate shipping is available on any order, with no GNC promo code required.
If you refer a friend to VitaCost you can get $10 off your next purchase over $30. Your friend will also get a coupon for $10 off their first purchase over $30.
Join the Weight Watchers e-mail newsletter to get tips, recipes and special offers, which may include Weight Watchers coupons, delivered right to your inbox. See the Weight Watchers site for details.
Refer a friend to Soap.com, and they'll get a 20% off promo code for their first order. Unfortunately, the discount does not apply past $100 spent. In addition to their discount, you'll get a $5 gift reward that you can keep or donate to charity.