If you're finding it challenging to get away and/or invest in events this summer, here's a fun way to celebrate staying put at zero cost (except, perhaps, for T fare). Kicking off tomorrow and running through September 1, Summer in the City features a fun roster of weekday family-friendly events covering music, dance, theatre, arts and crafts, and more. All events are free and open to the public and are based in Cambridge.

Image credit: Summer in the City