I rode every (working) day this week, and loved it. Just for a change I left home each day in plenty of time, so I wasn't in a rush. I enjoyed the ride more but oddly, I did the trip in about the same time, and arrived just as sweaty. So much for trying to go faster.
I learned about Eddington Numbers recently, which sound like a fun motivator. I'm currently playing with my ride database - every bike ride for the last 10 years (obsessive much?) - to calculate mine.