Yesterday's tip was how to drag items between groups to add categories. While you can add categories using this method, you can't use it to remove them if you drag the item to the (none) group.

Today's tip is how to remove extra categories.

• Select the items you want to remove from a category
• Right click and choose Categories from the context menu
• Remove the check mark from the category or categories to remove the item(s) from the category

*** You can add categories to selected items using this method too ***