I bought a Kindle last summer and promptly let it gather dust in my desk for a few months. Flash forward to January. I get snowed in, the power goes out, and I discover my impulse buy while rooting around for candles. I haven't put it down since. I'm the only person who gets addicted to an electronic device during a power outage.
Luckily I'm not lacking for stuff to read thanks to all the free Kindle books that are available. They add a few dozen every week and it can honestly get overwhelming to go through them all. You can check out the top 100 Best Selling free Kindle books, but make sure you're looking at the ones in the right column.
And remember, you don't actually have to own a Kindle. You can download the free app to your PC, Mac, iPhone, and Android, among others.