But Tunnie, the train would mean even more time in bed.... 
Glad it sounds like its going well down there 
BTW, you got a sofa I can kip on in a few weeks one night? Better still, do you offer a taxi service from Clerkenwell area 
Just looked on google maps, you bang in the centre there.
I have spare bedding, i and should have an air-matress as well (camping one) your welcome to kip down mate, the living room is big so lots of room to sleep in there.
Depends how late you are comming back from the centre..... sod me being a taxi, can't stand driving in London.
You can either take the boat from Embankment to Woolwich Arsenal, or the train from Charing Cross.
Boat is far nice, but i can imaging you screaming at the captain to get a bloody move on! 
Our 'team meetings' (not that the company will pay) tend to be in that area, and as you know its a bugger getting back here... ...probably about 11pm ish - not late as others have to get back to Luton/MK/Ipswich etc.
At the moment, the boats do not run that late to Woolwich, but that may change in the next 2 weeks.
Train is prob best, either London Bridge or Charing cross to Woolwich Arsenal, its about 30 mins on the train. You have to walk though
chav town woolwich to get to the flats, its not the best area, but its ok.
You can then take the boat with me in the morning back to Embankment, then go on your merry way....
Is it a mid week thing or a friday thing?