Some quick suggestions:

Get rid of anything that uses resistive heat. This includes but is not limited to an electric water heater, hair dryers, curling irons, clothes irons, toasters, etc. These items pull a massive amount of current.

Get efficiency light bulbs. You can cut your power usage for lights by up to 90%.

Put all computer peripherals that you don't use constantly on a power strip. Only turn them on when needed.

Get a Mac already. Just kidding, but consider a notebook computer. They are far more efficient.

Consider a propane or butane refrigerator. They use a lot less power. They're less convenient because you have to switch tanks once a month or so and re-light the pilot. We have both electric and butane fridges for redundancy.

If you get a solar electric system, get a grid-tie system. Maintaining a battery bank is a pain.

That's all I can think of at the moment. Will come back if I think of more.