If you use the Google personalized home page then you can add “stuff” to the page and one of the things you can add is a kind of complex but very cool weight loss calendar / weight loss tracker. All you need to add this to your Google home page is to click this Personalize Your Homepage link and then click the “add to Google” button.
This is great as the results of this weight tracker can be shown in a graph that will give you a rolling average to show you your weight loss as opposed to just seeing the bouncing up and down of your daily weight loss.