LEFT HANDED SCREWDRIVER

A thing we used to make freshmen go down and ask for from the machine shop to test their stupidity. Used now to describe a new product that performs the same basic function as the old product, but has a useless marketing feature. Example: Wow, the new Ziploc bags have a yellow and blue zip stripe...sounds like nothing more than a left handed screwdriver. (Well actually, there is a function: the stripe turns green so you can tell the bag is sealed. Not a biggie, but it's useful.)