Sorry I keep butting in, but I've been 'dieting' since last July and one thing that's pretty consistent in all diets is you should only weigh yourself once a week, same time each week wearing similiar types of clothing. Weight certainly does fluctuate up to 5 pounds in a day. To get the lightest weight, best to weigh yourself first thing in the morning wearing as little as possible (only once a week though). But to get a true sense of loss each week, you only need keep the similiar circumstances - for instance - weigh yourself every Friday evening an hour after dinner, wearing jeans.