My mother's parents ran a successful appliance store for many years and sold everything from the very first radios (including A & B battery because customers did not have electricity, so the boys would exchange freshly charged A battery weekly and B battery monthly), washing-machines ringer and later motorized, bi-cycles, TV''s and tubes to keep them running, refrigerators (early ammonia systems, and later refrigerant models), and raised 11 children that ate in shifts, that all worked in that store until they were old enough to marry or move away. Grandma kept the books and between all the paperwork and taking care of cooking and all other things for the children put in full days every day. Grandma believed in saving profit from good times, so as to have enough to get by in lean times. She had a term she used to describe people who spend everything to live in a flashy high on the hog way in good times. Her children learned well from her. Unfortunately now-days that term would be concerned racial. So I'll just leave it at this:
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Grandma did not think much of people who did not save for bad times.
One examen of how frugal she was is that every morning she put water in a bathtub for someone in the family to use, and the rest of the day that water was used to flush torets.