I try to do 'the long commute' once a week, but it does depend on teh weather. It's 38 and a bit miles each way.
No way I could do it everyday (even if I tell myself I want to) as it just takes too long. Getting up before 5 to aim for a 7:30am arrival at work just isn't good! Never get a good overall average speed as have to negotiate the east end of London all teh way to Holborn, so it's just slow progress sometimes.