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