Grocery List for State Side Shopping

Okay, so I'm planning a trip to Buffalo, NY to do some grocery shopping, and I'd like to know what suggestions are out there.  What couldn't you live without (food/drink wise) since your WLS, that I should add to my shopping list, that I can't get in Canada?

So far I'm planning to buy:
~ Fage Greek Yogurt
~ Kraft Fat-Free Shredded Mozzerella Cheese
~ Kraft Fat-Free Shredded Cheddar Cheese
~ Weigh****cher's products (not sure which ones, but I'll look)
~ Mission Low-Carb Whole Wheat Tortillas

Thanks for the help & suggestions!