Ключевые слова: 3d, additional living costs, ancillary costs, billing, calculator, cash, conservation, consumption, cost, debt, device, dollar, drawing, economy, effective, efficiency, energy, environment, expensive, figure, finance, hot, housing, illustration, line, measurement, metal, meter, money, money box, number, piggy, piggy bank, pink, plan, price, save, savings, service, supply, utilities bill, utility billing, water, water meter,