In my apartment all of my lights are controlled via an outlet. These outlets are not connected to a light switch. As a first step towards convenience I purchased an EtekCity wireless outlet and switch. Every Friday these lights are put on a timer until Saturday night. That meant removing the existing outlet adapter and putting on one of the lovely cheap timers for the day. The timers only have a 24 hour cycle so it did not make sense to leave them on for the rest of the week. Within the timer there is also an audible mechanical clicking. There had to be a better solution.
Of course! I already have a wireless light switch. Why not somehow interface with it? A quick search on a hackaday lead me to others who have done similar, such as this and this. It was possible and not too hard.