My sister does job-sharing. She works Mon-Wed, and her job partner works Wed-Fri (one day overlap for meetings and handover). This lets her spend more time with her family, something that's important to her. She gets healthcare coverage through her husband's job.

It works well, but you'd have to commit to a less-expensive lifestyle because you're not working 40+ hours a week. It has benefits to the company as well, as they get two people for the cost of a little more than one (and don't have to pay expensive benefits to either of them).