21! That is the number of QS gadgets that Rachel was wearing at the Privacy Identity Innovation conference in Seattle last week. Check out the video at http://allthingsd.com/20130923/the-extremely-quantified-self-meet-rachel-kalmar-who-wears-21-fitness-trackers-at-the-same-time-video/
Nice! I think Rachel will be at the QS conference in a couple off weeks and I look forward to seeing her latest setup.