How retailers can cut down on checkout queues without turning their stores into a grab-and-go

How retailers can cut down on checkout queues without turning their stores into a grab-and-go

Many physical retailers have started implementing self-checkout solutions with the aim to shorten checkout time, either by barcode scanning or by grab-and-go solutions. Yet, there could be high setup costs and limitations on products that could be scanned. How retailers can cut down on checkout queues without turning their store into a grab-and-go?