I find that wearing my Omron hj-112 is a great personal motivator......whether it is for personal best, increasing all day OR aerobic steps, I find this helpful.
It is tool, tailored to me, encouraging me to "step it up!"
the omron hj-112 measures aerobic steps and is programed based on your step length and weight. It also has a 7 day memory which is a nice feature! AND you can carry it bag, as well as on you -- i wear it, and the tether, safety strap is a nice feature as well!