For me it's Meijer. I'm a couple of hours from the border so once they open up again, no matter the exchange, I will be heading over just because I can. Oh and Birch Run, Michigan! I know first-world whining, but I just want some normal.
Hey that's cool! What products are you missing that you can't get/hard to get in Canada?
For us, we are out/almost out of:
Blue Top brand sauces. You find them here occasionally, but only one or two of the dozen or so varieties.
Canned Hatch chilies.
Campbells slow cooker sauces.
Funky flavours (er, flavors) of Celestial Seasonings teas.
Cheer Wine
Blenheim's Ginger Ale
Moxie from the North East
Wickles relishes
Groceries is usually the largest part of our duty free claim every trip.