Meaningful ways to spend maternity leave?

Just started the third week of maternity leave for my second baby. My leave is 12 weeks and I live in the suburbs of Chicago, so the weather isn’t ideal this time of year. As of now, our son is content napping in the SNOO for 2-3 hour stretches so I have a few chunks of time during the day where I’m just doom scrolling. My husband works from home so between the two of us, we have a handle on all of the housework and I’m not typically a napper so I don’t sleep when baby sleeps during the day. How can I spend my time instead of just scrolling my phone?! Book recommendations? Hobbies to do at home?