With the dollar as it is and the ridiculous difference between the prices of goods in Canada and the US, shopping here is for suckers. If you are even remotely close to the border, get thee to the USA. It is well worth the tax you have to pay when you get back to Canada.
We took a whirlwind trip to Syracuse, NY on Saturday. It wasn't our idea, but we gladly tagged along and got a few great deals. It made me not want to shop in Canada until the pricing evens out.