I maxed out the 200 sit-ups app, and now I use the 100 pushups and 200 squats apps on alternate days and do 200 situps when I wake up and before bed.
I'm using beeminder to tally the number of 20 min Pomodoros I do per day
I have a 7 day calendar with all my repeating daily or weekly tasks on it (the situps etc, putting up a blog post, retagging 5 posts on my blog from before the migration that lost the tags, checking on Mint on Thursdays, attending Krav and aikido class, etc). When I do a task, it gets a dot, when I miss it, it gets an x. Days with no x's get a happy face. On Monday, I count up the number of dots and log it in beeminder.
Right now, I am counting steps each day and I logged them on paper everyday, as close to midnight as much as possible. Only yesterday did I achieve my 10,000 steps goal. I have only been doing it since Sunday. This is my fourth day. Yesterday, I started logging my weight (on paper) to see if walking 10,000 steps will help me lose weight. Granted, it's rather manual, but also easy to do. If I try to purchase a pedometer that syncs to your computer automatically, it will costs me 99 USD brand new. Adding wireless output to my weighing scale will cost money too. There are two conditions that could lead me to purchasing sophisticated solutions: I am loaded with money and or I am overwhelmed with data input.
For now, the important thing is that I keep doing it for 30-60 days for habit formations.
What are you doing for self-quantification?