Home › Forums › Back End › WP: Can you use a Custom Field to "tag" a Post as Featured? › Re: WP: Can you use a Custom Field to “tag” a Post as Featured?
You should definitely be using Categories for this.
I’m not sure who told you posts should only have one category. Posts can have, and are perfectly suitable to have, as many categories as you like.
For example, if you had a review for the movie "Zombieland", you could have the following categories:
Horror, Comedy, Reviews
There is certainly nothing wrong with that. Click "horror" to see all the other things tagged with that, same for "comedy". Click "reviews" to see all of your other reviews. If it’s a site that also reviews TV Shows and Books, you could even have a 4th category applied to it called "Movie", so people could see all of the movies you’ve written about.
All in all, this is what the categories function is meant for, to both differentiate and group posts together. Using custom fields would seem quite backwards in this case.