Loblaws introduced its "Lucky Green Stamps" in 1959. The basic idea was that customers were rewarded for purchases with green stamps, which they could redeem for products offered in a separate catalogue. The mascot was "Miss Lucky Green" who apparently pointed a wand towards the "Magic World of Gifts." The coin above shows how, at age 8, she helped to celebrate Canada's centennial. Reward programs have now moved online, but it's more awkward to lick your monitor.