One word: Audiobooks. I listen to them while driving. I listen to them while riding my bike. I listen to them while wiring racks. I listen to them while cleaning house. And I listen to them at 1.5x. I rarely have time to sit down and read a book. but the bike ride down to Torrance and back will get me three hours of something - which, with a book like Rendezvous with Rama is 3/8ths of the thing.
My favorite audio book has to be The Dark Tower series. I listened to it in NYC over the course of a couple years. You forget how an hour or two walking / subway adds up. George Guidall read first two. His voice was like magic. I still get flashbacks sometimes. Like right now. I listen to a section of that and I'm walking back through Brooklyn in the middle of the summer and I can smell NYC again. Then, Frank Muller took over. He just takes it to a whole new level.
My wedding coincided nicely with the Swine Flu panic. And I had my one and only zombie apocalypse script to write. So instead of having a bachelor party, I took the 1 from Santa Monica Blvd to Astoria in my Dodge Stealth, taking it as slow as I wanted. Ended up taking five days. I listened to the Left Behind series the whole way. Fantasy might be graded on a curve, but it's a whole 'nuther hyperbola from the Jesus stuff. Man, what a bunch of stinkers.