A lot of people seem to think using light switches for anything is a good idea.  Popular sins off the top of my head:<p>- Light switch used as apartment doorbell.  Mine sits right beside the hall lightswitch.<p>- Light switch used as door opener.  Of course put right beside one of the hall's light switches.<p>- Light switch used as control for the office-wide motorized blinds.  Of course put right inbetween the other proper light switches used for controlling light.