it's funny what people like looking at. i never have a clue which bloggy things are of interest, but occasionally people email me and express gratitude for something or other which is brilliant (hint hint!)

for example, tom emailed me saying he loved the slippery surface sign collection and referred me to this excellent example

so here for tom, and all the other slippery sign lovers, is a slippery floor sign in the underpass next to Tower Bridge