These were my timings (this all reeks of the boy in my book but I don't want to think about that too much):
8:18: land on sidewalk in front of my house (behind schedule as I got up late and then there was too much faffing with getting an outfit together, which I blame on the change of seasons meaning everything I need is more or less in storage), head to train with
8:29: Catch District line to Edgware at Putney Bridge. Stop twice on the way in for no good reason.
8:51: arrive Central line.
9:06: head up the escalators at Holborn.
9:15: sit at desk after taking milk train-like elevator to 7th floor.
So! This is much better than fighting for seats every step of the way on the Northern and Picadilly lines and I do like not having a moronic third transfer at Totteham Court Road. Now let's see if I actually make it to Pilates at the Y today.