Category IDs

Not sure if this is the best place to make feature requests, but it would be helpful to include an ID column on the categories and tags pages. I purchased the “Page Addon” extension and occasionally need to excludes certain categories. I can only do this using category IDs and the only way I know what they are is to hover over a given category and note the ID in the URL. It would make it easier if I could just reference that information on the category page.

Thanks!