Cash & Carry - 405 Ohio Street (Exit 254)
Davinci syrups (many flavors under $4.00 eachgalore, And cheap.

Safeway -8071 GUIDE MERIDIAN ROAD LYNDEN WA 98264
Hood Calorie (was Carb) Countdown Milk, Dannon low-carb yogurt, Crystal light drinks (much more flavors in US including decaf iced tea, and lemonade in individual packets).

My favorite place is a bit further on (just north of Everitt):

Super Walmart - Hood Milk (regular, chocolate and low-fat), Dannon yogurt, cans of sugar-free whipped cream,, other Crystal light drink flavors and other ugar-free drink powders, sugar-free sweet pickles.

I used to buy the Hershey 1-gram sugar chocolates with erythritol, but I think they are not discontinued (nobody has had them the last few times I went down.)

I go down regularly just for the Hood milk, now that Dairyland has stopped making their low-carb milk.

Hope that helps