John, You didn't mention it at all nor did anyone else, but since 9/11, crossing the US/CAN border isn't a matter of waving your driver's license at the border and sailing thru. You will have to clear customs which, among other things, will require a vaccination certificate for your dog and a passport or passport card, along with a rare but possible search of your vehicle. Check with a passport office or American Express Office near your home to see what's involved well before you go. Since you're talking about a quick hop over the border, it may not be worth your trouble.