I am opening this up for discussion: How do you use your weathering powders?
I am a fan of the effects you can get with weathering powders, especially around tracks and shins. The issues I generally find is, that as soon as I start gaming with them I somehow manage to get my fingers on the powdered parts and transport finger prints across the model.
I have tried to seal them, but with often undesirable results.
Or are they just for display miniatures only?
Any advice to share with the world?