I am kind of taken aback by the growing wireless frequency clutter and was wondering if there are any smart plugs or other home automation devices that are controllable by just using the energy lines - like powerline. I mean you already have a rather reliable cable connection - why not just use it?
mostly that the zigbee as an open standard is on such an unfortunate range and the reports of it interfering quite too often with wifi
Zwave is in the 900MHz band clear of everything else you care about.