Shoppers Drug Mart Canada has an awesome coupon for one day only! Save $20 on your purchase of $75 or more with this printable coupon (below). This offer is valid on Tuesday, May 21, 2013 only.

Excludes prescription purchases, products with codeine, tobacco products, stamps, milk where discounts are prohibited by law, passport photos, lottery tickets, event tickets, transit tickets and passes, electronic gift cards, prepaid phone cards, prestige cosmetics and fragrances, and Shoppers Home Health Care locations. Limit of one coupon per transaction per customer.