AC size and generator size - advice please

I do a lot of dry camping with my toyhauler and I love having two generators. It came with a Onan 4000 which will run everything, but 90% of the time I use a small 800 watt 2 cycle generator plugged into the shore power. The small generator lets us run everything except the AC, electric water heater, and the microwave for about 6 hours on one gallon of gas. Most of the time we are only using a small amount of electricity, such as lights, TV, laptops, refrigerator; and it does not make sense to be constantly running a bigger generator and wasting gas. The small generator really takes up little space, has probably paid for itself a couple times over in fuel savings, and I simple start it in the morning and let it run all day long. The only problem is who has to go out at night to turn it off when we go to sleep. I am working on getting my son to design a simple remote control switch we can mount of the small generator to turn it off from inside.