Supermarket self checkouts

Well, for a start, I would abolish those.  I stood queuing today to pay for a few things in Marks and Spencer Simply Foods.  There was a long queue at the only manned checkout.  Meanwhile, two members of staff were faffing about, getting carrier bags and pressing buttons in order "to assist" customers on the self checkout.  I don't believe self checkouts provide good customer service.  I hate it at Boots and particularly at W.H. Smith in airports when you are struggling with perhaps a bag, hand luggage, boarding card etc.