A very interesting alternative, and I will try it. I am just wondering though - won't the water in the shampoo-solution or the hot water make it more exposed to rust? I mean, it is not always so easy to make sure the movement is totally dry/free of water in all the tiny spots, in between the gears, teeth, etc. And my experience is that if exposed to just water, the movement starts to rust REALLY FAST. With ammonia I feel I'm safer, because it seems that the ammonia contains some sort of oily substance that prevents the movement from rusting - at least that is my experience. However, I am willing to try this later today, as I have a regular 24 movement ready for cleaning. Wish me luck...!