J.K.
When my kids were in elementary I filled my time with volunteering. I'm also self-employed providing a service, but it is part time, on my own schedule, and I'm choosy about my clients. (Ha, that sounds sordid!) I've spent the past 5 years or so meeting people and making connections.
Now that my kids are both in Jr High and on the same schedule, I've been sending out feelers through my network to find the kind of job I like, in the right location, that works with my preferred schedule. I was told of an opening that is just about as perfect as can be, and I have a phone interview today. :-) If I get this position, the kids will be done with school before I'm done with work. They will walk home and manage without me just fine.