It's generally going well. I already did this boycott once before during Trump 1.0, so I know what do look for.
It's a bit harder this time around because there are things we need where a Canadian (or at least non-American) alternative doesn't exist. The big one is diapers, as we haven't been able to find anything non-American that also works within our budget and time constraints.
It's unfortunate, but also only temporary. My kids should be out of diapers in a few years, provided the world doesn't end before then.