Last time I was in London, I was going to an Aviation fair thingimybobber at Kempton Park, but due to engineering works, the trains only went as far as New Malden and there was a bus service laid on for the remainder of the journey.
So yes, I do know just how much of a pain it can be, but on the whole, where I live (near Glasgow), I'm fine.
In the last place where I worked, I was there for a year, and you have no idea the amount of delays people who drove had, due to accidents and roadworks, and BOY did people moan constantly about it!!
I had practically no problems in comparison!
I can't even think of anything in particular either, and what's more, I was there on time every day, whilst a lot of people weren't.
Go figure.