When I was tracking really close,I used to use Weight Commander
www.weightcommander.com
found it in web ads, if you see it you can download a free version and pay (it used to be 9.95) later. It is really great and helps with your measurements, goals, etc! I really recommend it. Plus, you can use it off-line, which is good for me. It will let more than one user track.
dottie