I think the "time intervals" idea is a great one. I have been doing that myself. I quit smoking in November, quit drinking soda the first two weeks of January and started Atkins Jan 14th. I've been holding off exercise, but I think next Tuesday (my WI day will be my starting point for that). Its a plan that has worked wonderfully for me so far as I have been overwhelmed in the past.
I hope it works well for you too!
Mini-Goal 31 lbs lost by 01/19/10!
My Daily Plate