I walked to work again today. I'll be picked up in a car going home though. Walking back and forth the same day left me with a sore body, so I'll try to walk one way instead of both.
The easiest way to achive one walking direction a day (as opposed to none or two) would be to bike in the morning, walk home, walk in the morning and bike home... And leave the bike at work over night. This will probably happen at least once next week.