I live in a very touristy area:
> P.S. if you are a local, you can do all of this too.
Last year, after spending a bunch of money putting in a fence, and having a puppy that didn't travel well, we decided that we were just going to take a week off and be tourists at home. We visited the museums we've driven by daily for eight years, and had a blast.
And, living in a touristy area, I want to point out that "do what the locals do" is excellent advice. I'll tell you all about where to get great food, great hikes, and not-too-crowded beaches. (Except the residents-only beach. We reserve that for us.)