One of your biggest obstacles at first is going to be wrapping your mind around being able to eat so much yet still loose weight.. So get over that fast...
Next, exercise does amazing things.. Walk as much as you can.. up stairs, around the block a few times.. Whatever it takes, do it every day for thirty minutes.. Or consider joining a gym.. My wife just joined Curves and loves it. Because this diet plan works to increase matabolism, exercise will only help that along, thus helping you burn off fat faster..
DON'T CHEAT.. DON'T CHEAT.. DON'T CHEAT... The menu plans are built that way for a reason, if you sabotage yourself, it will throw your body off and slow the weight loss.
I travel a lot in my job.. For overnight trips, I make sure to pack along veggies and fruit just to make sure I get my servings in. It's easy to stay on plan when you're on vacation.. Just make good choices, remember to eat plenty of fish and chicken, stay away from as much processed food as you can and stay away from the buffet line.. Unless it's a salad buffet..
Finally.. Don't expect overnight miracles.. You WILL see weight loss right off the bat, but as I've found out, there are peaks and valleys. And when that happens, it's easy to become discouraged.. But instead of reaching for a bag of chips, reach out for support.. You pay your COD a lot of money for their help, take advantage of it..
Oh, and don't cheat!