I’m sure there’s lots but these are some that I purchase:

Cavendish hashbrowns

Hardbite chips, though I did not like the flavour they had last time

Leclerc Celebration cookies (so friggin good)

Purex toilet paper

Mine also sells BC bell peppers, which I bought and then promptly forgot to cook or eat so they have been sitting in my fridge for two weeks

And I mentioned this elsewhere recently but if you purchase Kirkland brand vitamins or supplements, you’re supporting the Canadian company that manufactures and packages them here