Yep, I get my books from multiple sources. I usually look around for the best price and go from there. I have purchased from Smashwords and Fictionwise mostly. As well, I have grabbed free stuff from Baen, Gutenberg, and many other sources. When all of the above have let me down, I have sailed into the darknet to find what I seek.
I have also used my local library but find they are really slow to get newer titles and the wait times on anything popular is insane. I have considered grabbing an international membership for the
Philadelphia Free Libary at $15 U.S. but haven't done so yet.
Regardless of where I get my books, I strip the DRM to ensure my purchases are safe. With the exception of the library books of course.
