Think Yourself Slim

5. Get Your Priorities Straight

Start by making "commitment appointments." First thing in the morning, set your goal for the day, whether it's to spend an hour at the gym or to cook a healthy meal. Before the beginning of every month, decide which days you'll work out and what you'll do. Shop for healthy foods once a week, always on the same day if possible.

Stettner also recommends planning ahead for any obstacles you might encounter, such as a visit from the in-laws or a weekend getaway. If your mother-in-law stresses you out (and leaves you raiding the fridge after everyone's gone to bed), schedule private time during her visit to unwind. Going away? Book a hotel with a fitness center, or plan an active outing. Keep an exercise record and a food diary (noting not just what you eat, but when and why), and schedule a time to make entries.