My commute has got a lot more pleasant since I bought a bike and started using that.
I get to Victoria more quickly, the journey time is more consistent and I'm in a much better mood when I arrive. Oh yes... and I can eat cake more in the office since I burn it off again...
On occasions where I've got luggage or am meeting pals for drinks, getting on buses/trains again just reminds me how miserable commuting can be.