I might be visiting USA in July, what are the things I should have on my checklist?

I don't buy Apple products but some electronics are way cheaper there that I'd like to explore, like a good quality fitness tracker for dad.

Would it be possible to hunt for jobs/consulting gigs while I'm there on a tourist visa? Visiting SF would be impossible, I'm mostly restricted to Michigan and the trip is going to be 2-3 weeks max.

Any other suggestions? Advice? I'm visiting after more than a decade (last visit pre 9/11), has anything changed significantly that I should keep in mind?