I think you can never have too many bookmarks! At any given moment I'm in the middle of about five books, reading them depending on my mood. I only buy books I know I'll love (because I've borrowed them from the library or they are from an author I adore...) and I'm constantly re-reading them. Because I know most of them from back to front, I tend to start reading from the middle, from my favorite part, or from the page I find a forgotten bookmark on... I found this pattern for a fan bookmark at Crochetroo's blog. It was easy and quick to crochet and the result is very sweet.