Another one for Scouting magazine’s excellent Get Active supplement.
Fashion
Fashion Categories, unlike tags, can have a hierarchy. You might have a Jazz category.
Food
Food Categories, unlike tags, can have a hierarchy. You might have a Jazz category.
Lifestyle
Lifestyle Categories, unlike tags, can have a hierarchy. You might have a Jazz category.
Travel
Travel Categories, unlike tags, can have a hierarchy. You might have a Jazz category.