Forget not crapping where you eat
Most large cities present a rather interesting conundrum when you're out and about and need to use a restroom. Victorian (and later) era London was dotted with public restrooms - mostly underground. Those bathrooms have since (mostly) been closed and many have fallen into disrepair.
However, some are seeing a new lease on life as community members are stepping up and renovating them.
Londonist's latest piece on these toilets-turned-posh spots is pretty great.
The Attendant - 27a Foley Street, London W1W 6DY
Cellar Door - Literally under Aldwych
This Home in Shoreditch
Where to Wee Now?
While free public toilets are quickly disappearing, there are still a few places you can nip in for a wee in London. Check out this list from About.com.