Costco Sale: Design Optics 3-Pack Reading Glasses $14.99

*UPDATE* 3/25/16. Costco has the Design Optics 3-Pack Reading Glasses on sale for $14.99 (after manufacturer’s instant rebate), now through April 10, 2016. That is $4 off Costco’s regular price of $18.99. While supplies last. The range: +1.25, +1.50, +1.75, +2.00, +2.50, +2.75  (while supplies last) Item #743200. This product was spotted at the Covington, WA location. Price and participation may vary so it may not be available at your…