I used to do that, but I'm now using OneNote a lot more at work, for collaborative work of notes, input from the web, etc and drafting up inspection reports, meeting minutes and the text for reports. (I still use MLO for notes for home, though).
I don't use a category for notes - Most of my notes are linked to a specific task, but where they are general information, I hold them in folder items.
MLO works well with links, so I insert hyperlinks to documents, pictures, OneNote pages, etc on my laptop, or my Office 365 OneDrive, as well as external websites.
Stéphane