Sabbykay, I am scale-obsessed if I allow it. I used to leave my scale out in the bathroom and so I'd step on it every time I went in there (which is a lot on the days I get in all my water!). Now I've learned to weigh once a week and I shove it up under my tub so I have to get down on my hands and knees to pull it out, and I'm too lazy for that! But when I was weighing so much, I noticed my weight would vary up to 5 lbs. or even more in the same day. Obviously it's not weight gain or loss but fluids, the food in your stomach, the clothes you're wearing, etc. Even knowing that, if you're like me, it'll drive you crazy if you let it!