almost forgot. We changed out all bulbs to the new type. Plus, in the bathroom, I put up a battery operated light.
No need to flip the switch for a one minute trip. changed out the night light in the dark hallway to a sound sensor type.

All of the things together amounted to about $25.00 savings during the winter. It should help even more in the summer.

Check these out. I'm thinking about trying a couple of sets of these. Has anyone here used them ?
SOLAR CURTAIN
[link to www.dreamproductscatalog.com]