There's a lovely thread going right now full of witty, funny names for the noise made by a guitar player's left hand sliding on the wound strings. Different 'fixes' such as grease, flat wound strings, etc. have been mentioned in that thread but, so far, the actual cure hasn't come up.

The only real cure for the problem is to stop sliding the fingers when changing positions. It takes considerable time and application to develop one's technique to the point where finger-squeeking can be controlled but it's doable.

Your thoughts?