Since we're all talking oil change here. One thing I do is, after the oil slows down to a trickle(and still warm) I start the engine. Yes, start the engine; but just for 1 to 2 seconds and then shut it down. I then get a bit more trickle of the old dirty oil out. O.K, now I'm waiting for the "O.M.G., you shouldn't EVER start an engine without oil in it" post. That would be true for an engine that was brand new and never had oil in it before.