

While not free, I find a membership or two to be advantageous. There’s usually member swaps where you can get in another local location for free for a month. When we go on vacations our first stop is always a grocery store, and I usually try to get an extended stay hotel with a kitchen. Saves on eating out because we’ll pack for lunch and make dinner. We have an amusement park pass that works with other locations so parking and admission is included. Our museum membership works for hundreds of other out of state museums so we visit science and children’s museums included. Vacations are still expensive of course but this reduces costs significantly.
Other than that things like parks, beaches, library events. Meet up with friends at someone’s house.
We live in Virginia but the museum passport is everywhere (there’s also a separate zoo/aquarium one too). The passport does not work for museums within an hour or so drive of the home museum but it works when we go out of town.