Can't vouch for down South, but at least in the North-West it's common to say 'And your own' at the end of your drinks order. They usually only take 10-20p rath

Can't vouch for down South, but at least in the North-West it's common to say 'And your own' at the end of your drinks order. They usually only take 10-20p rather than the cost of an actual drink, though.