A minute's delay on the tube from Edgware Road to Waterloo last night caused me to just miss the fast train to Hersham I'd planned to take. Then, the train I was able to take was two minutes late within Zones 1-6, making me 28 minutes late overall.
Coming into work this morning, the train was again two minutes late, again with the delay accrued within Zones 1-6. This made me miss the intended connecting tube to Edgware Road, and the one I was able to catch was seven minutes late, owing to being held at a red signal. That adds another 10 minutes delay this morning.
In total, then, since yesterday morning, that's 38 minutes' delay for £95.