Originally Posted by Catastrophe
I'm not too far from Canada (20ish miles) and the UPS store where I get my mail has tons of Canadian customers. One customer must absolutely LOVE chewy.com, as they always have 20 or so boxes when I go in there. How much are you allowed to bring back from the US if you cross the border? I believe for us it is $250 a person (don't quote me on that, I looked it up months and months ago)
I live on the Canadian/US border and often travel to the American side to pick up parcels. There are a few services over there that charge you $3-4 per package to use their address as your US shipping address and hold packages for you. Even with the terrible exchange rate, border tolls and package pick-up fees, it's often cheaper for me to shop on Amazon US than Amazon CAN.
As for amounts allowed back, it's honestly up to the particular border agent you get. Sometimes if they have a stick up their butt, you'll be paying duty on $100 worth of goods. Sometimes you can get away with $300 if you get a nice/lazy border guard.
During Christmas season, they seem much more strict. I paid a lot of duty in the month of December!