Every few months check and refresh your paint supplies.  Whichever paints you use acrylics, enamels, or other solvent-based paint it is a good practice to check up on your paints and to give them a good shaking.  Check your bottled paints, do they need to be refreshed with a dab of water or mineral spirits?  What about your marker\paint pens?  Then you might also want to do a spot check on your glues, putty, clay, stains, and pigments, to make sure they are in usable condition.

Hopper Weathering Clinic
By Bill Mock
December 2009

Here is the first stages of weathering of my new BN [ ... ]

Is so awesome!! Not exactly prototypical, but Milwaukee Road none the less! So glad someone made this!!

I've finally added as much plaster cloth as I expect I'll need, and have moved on to priming the base before painting it.  Priming made it look unfamiliar, [ ... ]