Simple window shades made from masking tape.  Take the plain old masking tape roll, the off-white color and cut a piece off to place on the inside of the building window.  Usually covering the top half of the window is the way to go to show a half drawn window shade.  But to mix it up you can cover any amount of window to show a fully drawn window shade to a partially drawn window shade.  And they do make masking tape in various colors to match your need!

Here's a pic of the six, so far...

Hopper Weathering Clinic
By Bill Mock
December 2009

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

Micro-Trains Military Barracks Build by Modelersguild.com

Building this Z-Scale kit was a real pleasure. The parts fit nicely, the materials were right, [ ... ]