Think of categories as useful groups
Categories help you bring related information together. They work best when their names make sense to you. You do not need a complicated filing system or a category for every individual note.
Start with a few broad names
Try Home, Work, Personal and Travel. Home might include household checklists and useful reference notes. Work could hold meeting notes and task lists. Personal can cover ideas and plans, while Travel can group details you want to revisit before a trip. Use the category controls available for the item you are organizing.
Let titles do the detailed work
Instead of creating a category for every shop or small task, name items clearly: “Shopping — Friday”, “Kitchen — measurements” and “Packing — weekend trip”. The category tells you the broad area; the title tells you what is inside.
Keep the structure small enough to maintain
If you cannot decide between several nearly identical categories, simplify their names. If a category contains unrelated subjects, consider separating it. Free-plan category limits apply, so start with the groups you actually need rather than filling every available slot immediately.
Review as your needs change
A useful structure can change with your life. Review where new items belong and archive finished information you want to retain. Keep frequently used items pinned, and use search when you remember a title or detail but not its location. Categories support your workflow; they should not become another chore.