I find that people hardly use the books, tomes, etc.. and they are just things to discard rather than the good stuff like flamethrowers and such. I have come up with a house rule and I wanted to try it with you guys first.
Since its a book the spells you find are not one shots. As long as you have the book, you can recast the spells. You still lose sanity when you read the book, but the pay off is a bit better as you now have a small, magical arsenal that gives you more than just one magical punch.