Formerly, a Protocol worker, it mystifies me when I drive by a house with a flag displayed improperly. And more and more of late, to see digital images, decorations or images of a house, room, or display in which the flag is often incorrect. I just came across an image tonight and was about to pin on pinterest, but a picture on the same page had the flag displayed with the union on the right, not so cool.
"When displaying the flag against a wall, vertically or horizontally, the flag's union (stars) should be at the top, to the flag's own right, and to the observer's left." Flag Etiquette can be found here.
You can find rules here on flying the flag. from
United States Code, 2011 Edition
Title 4 - FLAG AND SEAL, SEAT OF GOVERNMENT, AND THE STATES
From the U.S. Government Printing Office, www.gpo.gov
There might be an updated code now, not sure, but the basic fundamentals remain the same.
Did you know, the American Flag has specific color codes issued by the US?
For residential purposes, if you are purchasing the US flag, American Flag, if made in the U.S.A., (hopefully~yes) it should have these designated colors: Old Glory Red and Old Glory Blue. US Embassies use Pantone approximated colors.