letting the house cool down to the outside overnight temperature. First thing in the morning we close everything up, including the blinds and curtains to trap the cool air inside.
e.g. keeping an eye on his kids when we are at the store, the park, when they are playing at their house. When it's dark, he points to the door and tries to push his wheelchair to lock it, or to the window blinds to close it. He has really learned...