When I bought my old (1850-1870) farm house back in 2006, I found out there were three outlets that went to a plug out in the detached garage. My dad gave me an old 2 cycle generator that was 1/2 new, half 1950s military. However, it would only run for two hours before needing gas.
In 2010, I bought a 5000w Champion generator from Tractor Supply. I moved one of the outlets from the enclosed back porch to the kitchen. When the power goes out, I go out to the garage, fill the tank (5 gallons), pull the rope and plug in the wire going to the house. I have a kerosene Monitor heater in the living room that heats the whole house, about 900 sf. I pull in the ice box, move the coffee maker from the counter to the top of the washing machine, which is next to the ice box. The third out is in the cellar and used to power the furnace, which I don't use. Then I run a series of power strips and extension cords, which when I get done, gives me some lamps, TV and the computer. Battery lanterns, flashlights and a couple of kerosene lamps complete my "emergency power plan."
Is all of that a pain? Sure it is, but it beats the $9K that a whole house Generac would cost. The only thing I do need to do is to install a transfer switch so that I can run the well pump.
AND, I have more money to spend on guns!