Incidentally, I'm still up. Not been to bed since a really poor nights' sleep on Friday before my experiment started. Today I have been mostly travelling back from Grenoble :(
At least for Thursday's 24 hour shift, I can drive there and drive home afterwards (about 20 minutes!) rather than having to get on trains, wait at stations, worry about taking samples through customs etc etc.
The original reference to Mornington Crescent in this thread was itself a reference to I'm Sorry I Haven't a Clue (the antidote to panel games), chaired by the late great Humphrey Lyttleton. I've been an avid follower of that radio show for the last 13 or 14 years (and it's been running for many, many more!!).
Particularly pertinent quote from it: "As the Pope says to young mothers: Get some rhythm!" :)
Roo