You may not be aware of the Bookbub website (https://www.bookbub.com) but if you love books and don’t want to spend all your money on them, you should. Using your book reading preferences and your preferred reading medium (e.g. Kindle), Bookbub scans Amazon, Barnes and Noble, the Apple store, and many others and alerts you to all the good deals. This includes time-related deals set up by publishers to give a quick boost to some of their big-name authors, and highly-rated free books that are available on Amazon. The site is free.