That’s awesome I want one!
They brought back the scales on our self-checkouts to check the weight of items to make sure they're consistent with how much they're supposed to weigh (i.e. you're not scanning a pack of tissues but loading up a watermellon). As a result, if you want to use your own bag you have to weigh it first. And it's important to use your own bag now that they've removed all single-use plastic bags and you have to pay if you need a plastic bag. But if your own bag weighs more than approximately 0g, it's deemed too heavy and someone has to come and check it.
They brought back the scales on our self-checkouts to check the weight of items to make sure they're consistent with how much they're supposed to weigh (i.e. you're not scanning a pack of tissues but loading up a watermellon). As a result, if you want to use your own bag you have to weigh it first. And it's important to use your own bag now that they've removed all single-use plastic bags and you have to pay if you need a plastic bag. But if your own bag weighs more than approximately 0g, it's deemed too heavy and someone has to come and check it.
It took me about 3 goes before I realised that:
(a) if you have your own bag, you have to weigh it now - failed attempt #1
(b) no, you can't just weigh your empty backpack because it's over the weight limit for a bag - failed attempt #2
(c) even if your bag weight is negligible, you still have to weigh it - failed attempt #3
i avoid those self checkouts like the plague. I'd rather deal with a real idiot than a computerized one since all 3 times I tried it was a nightmare and still needed an employee to deal with it.