This American bastard used to stop in Sarnia on my way to vacation at Ipperwash provencial park every summer. These days I think I'll just stay on my side of the lake.
I have occasion to use Canada as a shortcut to western New York every year or two. That's about it.
Even that will end next year when the passport law goes into effect. I'm not dropping $500.00 to get passports for the wife and kids to save 3 hours of driving.