Every day I measure my weight, systolic blood pressure, diastolic blood pressure, pulse, total sleep, ZQ (a point estimate of sleep quality), deep sleep, REM sleep, number of awakenings, the number of cards I review on Anki (along with how many I get correct/incorrect), quantity of melatonin taken, and quantity of vitamin D taken.

Every three months I measure my cholesterol and testosterone.

Starting on 09/01/2012, I plan to start measuring my type of workout, duration of workout, and quantity of nicotine taken.

I'm attempting to track my calibration over time by using PredictionBook. You can find the results here, but I stopped (at least until we get a decent tagging feature) making my personal productivity goals public due to Grognor's complaints.

I have started analyzing some of my primary data on my personal blog here and am willing to share my raw data (just PM me if you want a copy).