This is so obvious it must have been suggested already, but the Wemo security feature (a light turning off and on randomly) should be triggerable by a Nest thermostat set to Away. As it stands, when I leave the house, after setting the Nest to Away, I have to set the Wemo app to Away Mode. Which is silly. A rule using the Nest as a trigger can only control a smart plug on the same daily schedule. The random element is to offered.