This is going to sound ridiculous to you all, I am sure, but I have been tracking my workouts in Excel (exporting from the Concept Utility) and then moving the Logbook.csv data into my sheet. The end result is a monthly tracking of meters, weight, waist size. It tracks my workouts, training band splits. I even put in a field to let me know when to oil the chain and clean the flywheel. I integrated the Challenges found in the logbook so that I can have a quicker way to look at how close/far I am without having to dig around the concept site (which I find cumbersome).
That said, and I love me some videogames, I added achievements -- for instance:
100k Meters Rowed (Lifetime)
200k ...
500k ...
1M ...
Sub 2m 500m
Sub 1:45 500m
Sub 1:30 500m
Etc., etc.
When one of those fields is "TRUE", it gives me a little check mark. Just crossed the 200k line yesterday.

I am new to rowing, so those will look like child's play to you all, but it's just about finding fun ways to stay engaged. To that end, what "achievements" would you want to see/track/etc?
I am happy to share the sheet, will post a JPG of it later when I get home (it's ~6mb and the forum software blocks "large" uploads).
Just looking for your thoughts.

-JR