Alimentation Couche-Tard operates convenience stores in Canada. Every spring, they send out coupons via Canada Post for FREE food items, but most people throw away such coupons. Last year, my geological engineer/exploration geologist daughter Évelyne and I collected 22 coupon sheets, sometimes diving into recycling bins. This year, I was alone and visited several apartment buildings, focusing on mailbox areas. I managed to collect 25 coupon sheets from waste receptacles in about 90 minutes.