I very rarely carry cash now. Very occasionally you get a place which is cash only, but in London at least there are vastly more places which are card only (sma

I very rarely carry cash now. Very occasionally you get a place which is cash only, but in London at least there are vastly more places which are card only (small stalls etc which have a iPad EPOS and a card reader, which avoids the need to worry about cash being counted/stolen/paid into the bank).