Dear AT:Home Tech Readers, Maybe it's an "old wiring-safe" dimmer switch*, or a whole-house lighting control system you can take with you easily when you move places...we want to know, what technology for your home do you wish existed?
Let us know, the wilder the better. And if we think it might actually exist, we'll research it and let you know--or speak up if you know what someone else wishes for exists.
*Our building is old, and even though the wiring was updated at some point, the super won't let us install a dimmer switch, even if we pay for some serious quality in that dimmer switch--boo hoo!
Photo from o2ma.