just a note, but #5 and #8 will do virtually nothing with respect to electricity usage, while #2, #3, #6 and #9 are big deals. Point is, it's well worth your time to figure actual electricity usage by an appliance/light/heater, and decide on that basis whether it's worth the possible effects to turn the item off or use it less.
For example, i wouldn't even consider locking my tank heater out during specific hours because of the risk of an unusual situation (such as cold weather and/or the house heating system malfunctioning) causing the tank temp to fall below 75 deg f. But limiting the evaporation from the tank (which costs quite a lot in heat loss) and insulating the sump is something i've already done.