It's official. World's most useless invention: The coffee stir straw. I swear unless you pinch 14 of them together, they don't even move the surface of the coffee. And why are they only 3.5 inches long? Just how small a coffee cup do they think we're using?? "Stir quick! The one sugar granule that stick can move without totally collapsing is sinking!!!" Dumb.