Museums. Our art museum is free for residents of local counties. The other museum isn’t free but we have membership which ends being inexpensive in the long run

We go to local symphony orchestra concerts fairly often, it could be pricey but we have deals pop up that are $25 or even $10 a piece. Just watch for their emails/updates

Festivals/art fairs. When it gets warmer. Many are free, or cheap.

Movies. Many theaters are inexpensive, we do prefer to watch it at home but either way is fine

Painting pottery (our favorite), or glass or other crafty things/classes. Those aren’t cheap so maybe not weekly

Walk in a park. That’s free unless going to state/recreation area but it isn’t too expensive if buy annual pass

Go to gym together, then pool and hot tub. Provided that you have gym membership

Walk by the lake/river/ocean depends where you live.

Walking tours of city areas, not that expensive

Explore new or unfamiliar restaurants. If expense is an issue, many ethnic authentic restaurants are very inexpensive

When it gets warmer, picnic in the park

Miniature golf.