This may be a carry over from another thread, but I love books on CD -- for listening to on the train to/from work [while I knit!], while I'm walking, when I'm sewing, etc.
I'm lucky in that I have FOUR public library systems all within an easy walk of BART [one of our local public transit systems]. Sometimes I get on a kick and want to listen to everything an author has written and will go to each of these libraries to get my 'fix.' Nora Roberts and Alexander McCall Smith come to mind -- wonderful books and fabulous "readers."
I feel so virtuous and productive when I listen, since I get to "read" [one of my very favorite occupations] and do something else at the same time!
8)