Advice on Western Route thru Canada

When I drove my RV to Alaska, I crossed the border into Canada at Sweetgrass, MT. At the time, you could buy a U.S./Canada pass but a regular passport wasn't much more expensive than the pass and lasted longer. I got mine at a local American Express office before leaving home in Cincinnati. Don't wait until the last minute. It takes awhile for approval. And while you're at the American Express office, exchange some $US for $CN. Once you are several miles from the border, don't expect CGs, restaurants, groceries, etc. to know the current exchange rates. National U.S. banks can do the same thing, but it takes longer.
Also, when I drove through Canada the Starbucks equivalent was Tim Horton's, but Starbucks purchased them a few years ago, so your caffeine fix is available throughout Canada. But learn the Starbucks lingo before you leave so you don't sound like a newbie. :)