I was asked to give my couch a little attention from someone who knows what they want when it comes to a clean couch. I start by vacuuming the floor, but realize that the couch is rather dusty and probably filthy under the cushions. So I take the head of the vacuum off so the long hose remains and I take remove all cushions from the couch and get to work... I must use my weight to open up the corners of the couch to get the hose in, eventually I switch to the short hose, eventually I am happy, sweaty, and done. That's a clean couch.