The libraries! They are beautiful, peaceful, warm in winter and cool in summer, and full of interesting reading and listening material and programs.

Use of the gyms at the schools. I understand pickleball is limited by gym availability.

Self guided walking tours and apps connecting historic areas and open space, like AcrossLexington.

Co-housing within walking distance of town centers.

More restaurants/pubs. I know it doesn't always fit with existing parking requirements, but that seems to be the ways vibrant towns are going now that retail is fading away.