If you do not use your car that often, and have built/bought a car mount for your tablet, why not repurpose it and stick it up to your desk near the main monitor? Having Mauku running in it which lights up the display whenever someone posts updates surely is nice. Some other use cases are monitoring servers with an open X-Terminal or listening to some music/podcasts with the media player of choice.
I built mine by buying a gooseneck mount and screwing the included car mount onto it. This still allows me to use the mount in the car, too.
