My trip on Tuesday morning (with apologies to cellardoor)

Walk to Forest Hill station 5
Just missed train - have to wait for next one 6
Next one cancelled (fault on train) wait another 5
can't get on next one as too full due to previous cancellation, so:
Wait for train 6
Train ride to London Bridge 15
London Bridge railway platform to Jubilee line platform 7
Wait for Jubilee line 3
can't get on train as too full, wait for next 3
Jubilee line to Baker Street 13
Jubilee line platform to Bakerloo platform 0.2 (running now as late)
Wait for Bakerloo line 3
Bakerloo to paddington 7
miss train at Paddington

think next time I'll take advice and cycle....