We've been on time-of-use pricing for a few years now. The on-peak and mid-peak time zones that switch between summer and winter seasons. The off-peak always stays the same.
We're full electric here, so we pay attention to the times. We put the water heater on a timer so it will only heat during off-peak hours. We can easily bypass it for the time cycle if we need more hot water, or it's the weekend/holidays.
We have a geothermal heat pump, so we don't have any fuel/gas/propane expenses. The system is quite efficient and trouble free. We keep the house at about 74F year round. It's cooler than I like in the summer, but Dad sets it. We don't fluctuate the temperature through the day, the system works better when we maintain a small temperature range.
We're replacing light bulbs as they die. I hate CFL bulbs. We'll buy the LED ones when they go on sale. Unfortunately, they are bigger and don't fit into everything. We'll have to replace the ceiling light fixture in the kitchen if we want to put an LED in it.