We almost always shop at NoFrills, Costco, and a couple of Indian grocers. We love Costco and we buy things like: low cost butter, cake, ciabatta buns, large pineapples, limes, organic milk, chips, ketchup, laundry detergent, gas, toilet tissues, and more.
We also make sure to finish what we buy and we only buy what we really need/like and go by a list, very occasionally drifting to experiment.
We are vegetarians.
Indian grocers, by the way, are the most reliable source of cilantro year round.
Our average grocery bill here in Etobicoke, for two, is 150$.