Stick with it to the letter.
DON'T 'borrow' from next week.
DON'T see it as an open invite to go out and eat what you want when you're out and about - stick to foods within your week! (ie - we ate out, and I rang in advance to ask the chef if I could have an omelette with green salad in advance - therefore I enjoyed eating out, AND stayed within my rules).
READ your book carefully!
MAKE the recipes - the veg curry and ratatouille are to DIE FOR! Better than anything I've ever had before!
BUY sugar free jelly and keep it made up in single portion pots in the fridge.....great in an emergency.
Yoghurt - Total 0% Greek Yog is FABULOUS stuff. If it's too sharp for you, add a spoonful of SPlenda (2 cals a tsp) to it.
Don't look at weight loss/gain in RTM - try to pick your ideal weight and stay within 3 pounds of it....that way you won't feel disappointed when you gain.....afterall we're not machines and our bodies WILL fluctuate!