“cart-level checkout feature” sounds remarkably like Waitrose "quick-check/quick-pay" which has been running for about 10 years (I know 'cos had to get used the the queing at a till thing again when I spent a couple of years in the US so it was running before 1998 ... n..b. this was about the same time that US banks "invented" the debit card :-). Only difference is quick-check doesn't have adverts and is handheld so can be deployed with baskets ... or even the simplest straight to bag setup which I normally use!
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US catches up after 10 years ... again
“cart-level checkout feature” sounds remarkably like Waitrose "quick-check/quick-pay" which has been running for about 10 years (I know 'cos had to get used the the queing at a till thing again when I spent a couple of years in the US so it was running before 1998 ... n..b. this was about the same time that US banks "invented" the debit card :-). Only difference is quick-check doesn't have adverts and is handheld so can be deployed with baskets ... or even the simplest straight to bag setup which I normally use!