This week at Walgreens, Systane Icaps Eye Vitamins are buy one get one 50% off. Buy two 30-count boxes, regularly priced at $20.99. At checkout, use two $10.00/1 Smart Source newspaper coupons. Keep in mind, the price of the 50% off item must be at least $10.00 for the coupon to work. The cheaper item will be marked 50% off. The final price will be $5.74 each!