Is there a way to say how long you want your ad to run for?
Like on ebay you can list for 3 days or 7 days and then it ends.
or maybe have a MN eaby section and you pay a small fee per listing (am aware that people could sell a trillion things in one listing), choose how long (3 days/a week) and that way people CAT you if they want something and you don't need to bump al the time?