There are some food items that are less expensive in the US that you should consider bringing with you, Chicken, milk, eggs, cheese, fruit juice and bread produts top the list.
Alcohol, beer & wine of course and if you smoke cigs they cost over $10.00 per 25 pack up here (booze & smokes carry what we refer to as a "sin tax")
Check the CBSA website for quanities but all of the above are ok for import subject to limits
Most other products are not priced that much different and if you use your credit card when shopping here you should realize a 3 to 5% bonus on the exchange rate making things even cheaper. Exchange rates for cash transactions are not likely to reflect the best available rate.
Don't know what you are driving but fill your tank on the US side as close to the border as possible. Gas here is running about $4.86 per US gallon and desiel a little more!
That being said - you are about to visit one of the most senic and friendliest places on the planet.
Welcome to the Maritimes!!
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