I do not have blinds (yet) but I envision one day tracking the sun with the heliotrope plug-in, closing blinds when the sun is shining in a window to protect the house from solar heat gain, or opening up blinds in the winter to gain solar heat gain. Others could be left open for indirect lighting, or closed to reduce heat loss. But until I get blinds (maybe 2018), it is just a thought.
What I have done, using PLEG, is set the exterior lights to come on at sunset, and go off at sunrise. But it does more than that. I use the Weatherunderground plug-in to look at the weather conditions and will offset the lights on/off depending on those conditions. For clear or partly cloudy, no offset - on at sunset and off at sunrise. For mostly cloudy, fog, or overcast, I use a 15 minute offset. For rain, I use a 30 minute offset.
I already mentions the heat/cool based on outside temperature.
My other thoughts (when I get time to play with the logic) is to look at phone location and ETA to the house, and outside conditions and start heat up/cool down startup based upon outdoor conditions. For instance, if it takes an hour to cool the house when 95F and 95% humidity, start to cool the house an hour before we get home, rather than manually.
Sort of doing that with Night Mode. At bedtime, heating is set to 65, cooling to 72, depending on season. And season is defined as outside<60 for heating, and outside>65 for cooling. Does not matter what season it is, the outside temperature controls the heating/cooling mode. In the morning, heating is set to 68, cooling to 75. And Vacation is 60/80.
So summer/winter is not something I would use.