A "1 million PC Optimum" is a prize offered in various contests, which equates to approximately $1,000 in value. These points can be redeemed for rewards at participating stores like Loblaws, Shoppers Drug Mart, and Esso. The value is based on a redemption rate of 1,000,000 for $1000. You can win these points by making purchases at loblaws store use the 19-21-digit code located on the bottom of your receipt to complete the survey online.