Originally Posted by Evil Chris

They don't have to keep up with exchange rates. You just need a little sign on the counter that says "today we'll exchange your Canadian funds at _____". Stores in the US have managers right? OK... one of their jobs is to adjust the settings of that rate for the given day. It's never exact, but close within a couple percentage points.

You accept only American because you accept credit cards. Correct? No matter the currency, the card does the currency exchange for you. Similarily, retail stores should be able to do the same thing.

This boils down to the US doing what we've done for years in Canada. Simply accept each other's hard currency at an exchange at the till. Pretty easy.