Ключевые слова: app, budget, buy, buying, cash desk, cashier, cashless, charge, checkout, checkout conveyor belt, checkout counter, commerce, consumerism, cost, customer, digital payment, expense, financial, food, giving, groceries, grocery, grocery shopping, grocery store, hands, mobile payments, money, nfc, online, pay, paying, payment, pos, products, purchase, purchasing, retail, salt, shop, shopping, smartphone, store, supermarket, technology, terminal, trade, transaction, woman,