Ключевые слова: apartment, banknote, battery, bills, cable, calculator, cold, cord, core, cost, crisis, economy, electric, electricity, energy, euro, expensive, expensive bill, gas, heat, heating, heating bill, heating cost, high, home, house, indoor, keyboard, lamp, laptop, led, led lamp, money, online, paying bills, payment, plug, price, radiator, saving, thermostat, turn, utility, utility bills, utility payments, warm, white, winter, wire,