Here's how Julie Elkeshen of CityMommy does something for herself during those otherwise-wasted snatches of "in-between" time:
I put audiobooks on my iPod and then carry it everywhere. When I have those spare moments while I'm waiting — at school, at gymnastics, watching the kids at the playground — I put one earphone in and listen. I listen to new business books, parenting books, anything, really. I now feel calmer, like I am getting something accomplished in those moments that I am usually trying to rush through.
So? Good audiobook sources?
More: Hacks involving audiobooks