i'm of the opinion, I don't care how much glycogen I burn, I don't care how much my body puts back and water retention isn't always a bad thing. Weight is a number, that's it. There's 150lbs of good stuff, and 150lbs of not so good stuff and ratios of of the "good" and "bad" that make us healthy, or not so healthy.
Health should be about health. Weight should be about healthy. Lifting weights, running, walking, box jumps, handstand pushups, etc, should be about health.
there is no need to weigh yourself that often, or figure for clothes, or don't drink so you weigh less or think because you weighed one thing at night and another in the morning that it means anything. It's a number, and weighing in the morning isn't more "accurate", it's just usually less because you haven't eaten or drank anything in 8 hours or more. that's it. Is a person not to eat or drink to maintain that "number"? how does that make a person more healthy?
a scale doesn't tell you if you're healthy anyway. There are loads of "thin" people that are extremely unhealthy and continue to do unhealthy things every day to maintain that number.
Pick a time during the day, usually morning or evening, wear about the same style clothes, no shoes and take a measurement. do it again tomorrow, same time. Now, for the next 2 months eat real food, move every day and then weigh yourself again in 2 months and even then, it doesn't mean much. 150lbs can be healthy or unhealthy depending on what is making up that 150lbs. The number doesn't matter, what you DO matters, what you EAT matters. the scale doesn't mean anything. It makes people continue to focus on the stuff that makes no difference.
I know when i'm not moving enough or eating the right foods. I don't need a scale to tell me that. and if you are eating real food and getting up and moving every day and often, what is the scale going to do for you? motivate you to do more? less? is the number the motivation?