Windows decals are a great for businesses to utilise the space on their buildings in order to advertise to a large radius. This is essentially just making most of what's basically a free billboard across the side of the building - and one that can also get lit up.

This is basically another way to make the most of your real-estate as a business and to turn your financial assets into marketing assets too. Another example of doing the same thing however is to use windows decals for your cars - vehicle decals - which you can place on your car windows and the windows of your staff. Again you already have the cars; this way you are simply using their blank space to its full advertising potential. At the same time though these will likely move around the country ensuring that as many people a possible see your business across as wide an area of possible.