1. I used to put my air conditioning temp at 20. I realised I was wrong. Now for almost 12 years I don't set below 25 deg Celsius. And we switch it off and put the fan on after a while. I did not do it because a 16 year old screamed.
2. I try to walk to all the spots which take me 20 minutes via walking. Yes before I'd drive to get everything. We change when we get what is happening around us. Don't need a 16 year old screaming at us.