In the little town of Atwater, CA, former home of Castle AFB, there is a hardware store (Ace I think, but not sure), that to this day (I was in there two days ago, and I doubt that they have changed in that time), they have little stickers with prices on EVERYTHING, a couple of old fashioned, time worn, receipt gizmos, and a cash register that they can work by hand. Power out, no problem, they can fill and light several of the many oil lamps/lanterns that they sell, along with fuel and matches, hand write the reciepts as they do every day, and keep in business. Sadly, the same can not be said for any other business in the town, or probably the county. Or maybe the state...
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OBG