I bike 11km to work which takes about 25minutes. Where as driving would often take about 40mins depending on the town traffic of Ipswich. Therefore the saving of petrol, money on parking and also the time from walking to and from car park. I have found also that the use of bike lanes speed up the journey. One down side is the cost of a bike, but the bike to work schemes make it easier. I bought an older road bike from ebay, tarted her up and named her Brenda.
We don’t have showers at work but i do have a change of clothes in my ruck sack and I leave in my desk a towel and toiletries to freshen up. I feel more awake and more energised for the day, it makes fitting in exercise easier and without noticing.