A few years ago I had a realization many bookworms face: my "to-be-read" pile had become an entire library of unread books, with little shelf space remaining. As new books kept coming out, my book buying habit was easily outpacing my reading speed. So, I decided to take the leap and buy a Kindle to not only save money, but to also reduce the amount of physical books I was buying. While I've found some great free books and monthly sales, nothing has saved me more money than my Kindle Unlimited subscription. I often see people asking if Kindle Unlimited is worth it, and my answer is always a resounding "yes."The monthly subscription costs less than a single paperback book, but also lets you borrow up to 20 books at a time. I love that I can read a book digitally at first, then if I absolutely love it, I can buy a physical copy for my shelves later. Plus, it's a fantastic way to save a significant amount of money if you tend to read a lot. And you don't eve...