Have you tried audiobooks yet? I've been a big listener ever since Books On Tape but now listen through the Overdrive or Audible apps on my iPhone. Books are usually borrowed from my local library, although I've purchased many through Audible.com and downloaded dozens from Audiofile's Audiobook Sync summer program. Like my Kindle library, my audiobook library is stuffed to overflowing and my to-be-read list may never get fully read.
Some of my favorite times to listen? In the car, especially on long trips back home to Massachusetts, while floating in my pool, during the dreaded housework.
I love audiobooks so much that all of my own books are available in audio.