A friend of mine once wrote "Not sure what I'd do if I didn't have a book in my hand," and in case you couldn't tell, I'm the same way. With the Kindle app on my phone it makes it a little easier than carrying a physical book around, and best of all there are TONS of free books online - if you don't mind reading old "classics." Recently, while browsing on Amazon, I noticed that a lot of books by Edgar Rice Burroughs are listed as "popular downloads," particularly the John Carter of Mars series (because of the recent movie, I'm sure), and even his Tarzan series is enjoying renewed popularity. I read a couple of the Mars books when I was a teenager (#'s 2 and 4, I think - in addition to a few other cheesy sci-fi books) but didn't really get into them.
Yeah - I know - it's kind of a cheesy story-line, but it was also surprisingly fun to read. I was reminded the whole time I read it of an 80s movie called Romancing the Stone - which was also kinda cheesy - but a fun adventure tale. Not the kind of thing you take too seriously, but fun in an escapist kind of way. And the book was free.