[williamting]

As a matter of fact, I do try to use the skin slider only, ie, apply once instead of applying another layer using the touch up brush. But in reality, I ended up using the brush very often for target retouching. I think you are right that the result is better if slider only is used.

Have you thought about using "File->Save Session"? This allows you to continue from where you stop (or from the point you save the session). I tested it again just now and I think it meet your exact requirement. Don't forget to save your final work "File->Save Jpg/Tiff".

Let us know how it goes.