I’m motivated by numbers, metrics, graphics -  anything that shows progress or movement.
When I went on the quest to get my weight / body stats under control, I first got a digital scale so I could measure up to 100 gm accuracy.  Then, when I hit a plateau and deluded myself into thinking that the weight gain was really muscle or water (yeah, right), I went out and got another, more accurate scale – the difference this time is that it measured body fat, water content, even bone mass.  Yeah.
The …