Yes.
Here are a few examples:
http://activerain.com/blogsview/3168...ome-inspection
In this example, extra cable length is stored as a 'service-loop'. The extra cable might be needed at some point in the future or factory built cable was longer than needed. Use this if you anticipate moving or rearranging the cabling. See step 1:
http://www.diyadvice.com/diy/electri...ling-tv-cable/
Avoid sharp bends.