I get the bus to work every day, takes me about the same time as getting the train or tube, with interchanges taken into account. I travel from Goose Green to Westminster, so either bus (change in Camberwell) or get to Brixton to get the tube, or get train at Denmark Hill. I could really do without the people who talk ALL the way on their phones, or the greasy eaters - really? But I take a book and it's ok. 40minutes, not too bad...