I had a phone call from a customer asking if I could clean her windows asap as neighbours had been having work done and they were filthy.  As I finished a bit early today I called round and cleaned them on the way home, as I was writing the bill I realised that I had cleaned the wrong customers windows,  I don't know why I did it I wrote the details down when she phoned but still went to the wrong customer I  thought they were clean when I was doing them but still carried on.  Will try again tomorrow, numpty.