Advertising your business is an essential, but costly, fact of life and there seem to be an ever increasing number of ways in which to advertise. However, as so often in life, some of the old tricks can be the best. For any size of firm, using your car as a mobile advertising billboard is one of those old tricks and it can still be incredibly effective. Today there are a number of ways of doing this but the two most popular include a standard vehicle wrap, or the more simple use of a vehicle magnet.…