I'm very lucky in that my workplace provides everything I could want in respect of facilities to assist with cycling to the office. We have a secure underground bike rack (250-ish spaces, 75% occupied most of the time, 99% occupied while the Olympics are on) and plenty of showers, lockers and fresh towels.

I just carry a shirt in each day and then rotate trousers, keeping a couple of suits and ties in the office for meetings and stuff.

I always wonder why more people don't cycle to work here, especially when I read about you guys who do it without the assistance that we have.

FWIW my commute is 10 miles each way and I am in no fit state to do anything until I have a shower.