have been clocking locations, but unfortunately whenever i spot some i don't have my camera, then when i have a chance to return it has been cleaned/painted over(!). am hoping the snow will deterr the council graffiti squad for a few days so i can check up on locations i have noted...i did find this at Wollaton Hall (Nottingham) the other day though:
graffiti by
alexharrison101, on Flickr