a Goal for 2008 - health

Here's a health goal for 2008, actually 3:

1. Try to go to sleep nightly before 11 pm - hard for a nighthawk
2. Lose 20 pounds
3. Exercise at least 3 times a week

I'm wondering how to track this.

Of course the other question is, what weight should I use as the start weight? I think I'll put the weight I remember weighing in near the beginning of the year.

Regards,
makingourway