"Are you sure you want to permanently delete the folder and move its contents to Trash?" This question is all that stands between you and completely chucking a folder. Do you want to do it? OK, here's how.

Click the folder you want to delete, and then click the Delete key on your keyboard. That's it. You'll get the "Are you sure...?" question, and, if you are, click "OK." Buh-bye, folder and everything in it.