This isn't even weird.
I think most security experts would recommend that you have your most important passwords written down somewhere, and then hopefully locked up in some safe or deposit box somewhere. You don't need to buy an entire book for it, but some people like to spend money.
If this is for your less important passwords, then for the most part, writing them down is actually better. You won't be as tempted to reuse your banking password for your social media. And some people like writing things down. A password manager is a better solution, but lots of people aren't as good with technology and if they even let the browser remember it, they won't know how to retrieve it later if they want to use a different computer, for example.