Green Commuting - Day 1 - Mon 4 April

Ok, so I did 48km of local commuting on Monday, of which 40km was home to GF, home to office, home to gym, home to SRAM service centre, and all of these were suitable for green commuting.  the only exception was the trip to Menlyn Park to exchange clothing - no secure bike parking, and too much stuff to carry.  So the resuts for day 1:
1. Fuel saving:               R40.
2. Exercise value:          120min ~ 800kcal
3. Time lost:                  ~60min
4. Sustainability:            High

Commuting by bike and Foot

Ok, so I've decided to start looking at commuting under my own power.  This should be quite challenging because (a) I travel a helluva lot, (b) I'm a professional engineer who therefore needs to be dressed neatly, and have a laptop handy almost permanently, and (c) I hate being sweaty when I'm not actually exercising.
So the first part of this exercise will be to analyze my current commuting activities, log these and decide which I could have done without the car, and how practical it would be.  Also, what additional items I would need to purchase such as backpacks, bike locks, rain jackets, etc, and how soon these would be paid for by travel cost savings, and then of course analyze such items as security, safety, professionalism, cost of time lost, exercise value gained, possible cost savings simply because I didn't do something because of the "schlepp" thereof, risks (if I fall, what about the laptop).  If anyone has more items to comment on, please feel free to leave a comment.
Your (greener) blogger.
B