At Puritan's Pride, buy one select Puritan's Pride vitamin or supplement, and get two more for free. Alternatively, buy two supplements and get four more for free. (This discount applies automatically.) Plus, take an extra 20% off via coupon code "BLACK20". Shipping adds $4.95 or get free shipping on orders of $19.95 or more. Deal ends November 29. A few best bets, with prices after coupon:

• 3 Puritan's Pride Vitamin D3 2000 IU 100-Softgel Bottles for $6 (pictured, $15 off)
• 6 Puritan's Pride Black Cherry 1000 mg 100-Capsule Bottles for $35.19 ($92 off)