Need to preview your model space objects as though they were in paper space with a white background color for a quick visual check?  Here's a quick way to do this elaborate task in AutoCAD with a simple keyboard shortcut in PostalCAD.

PostalCAD has this great toggle for cycling between a black or white background color.  Enter TBC, short for Toggle Background Color, at the command line and the background will switch from white to black or from black to white.  The background will also change to only black or white if it is another color.  The command can also be found in the PostalCAD pop-up settings menu.

Another classic use for this command is to set a new installation of Autodesk Map 3D to a black background instead of the hideous blue background the software has on installation.