Deleting my useless old posts

Hello. I have been a relatively active member for 6 years or so. I just learned from a thread how to mark my sale items as sold. I have searched high and low but I cannot figure out how to delete a post. There was a link when I searched for this, but it did not result in a method to delete. Thank you in advance for any help with this matter.

Only mods can delete a post. If you use the "SOLD" button on your for sale posts a mod will delete the post.

Thank you.