I love this post by Tracy. I think that it's easy to fall into the trap of "I've started so I'll finish" as a badge of honour when it comes to books, even when I'm not enjoying them any more.
I also echo the sentiment about knowing what you like. Whilst I enjoy a good pop-sci non fiction book, biographies trigger my "air raid siren".
I also like having multiple non fiction books on the go whilst I power through one good story.
Reading what you want, when you want is also a great directive. I find that if I'm feeling industrious, I might want to sit and make notes on a non fic but sometimes if I'm tired or anxious (e.g. Sunday scaries), a good story is great escapism.
