How do I delete categories?

How to delete a category:

1. Login using an account that has Administrator privileges.
2. Click your screen name in the upper right of the page, then click the Site Manager menu.
3. Click the Categories link in the left sidebar of the "Site Manager".
4. In the resulting page, click the Del link next to the category that you want to delete.
5. Confirm that you want to delete the category and all ideas in the category by clicking the
   Delete Category & All Ideas In It button.

 Note: This action cannot be undone.