An interesting post from the Fast Company website might be the beginning of some of the problems we have in measuring time management upgrades.
The product is a sensor that looks like a wristband, and can be used to track all sorts of movements that a user might conduct in the normal course of a day. There might be no need to track your time usage manually each day, if it works as described, and you might be able to do the kind of real experiments that are needed to see whether or not a change in a single habit really helps, or just feels good.
The product is called “Up” and the company that makes it has a very cool name: Jawbone.