I weighed myself for a while at home. Then I didn't. It wasn't really a conscious thing to stop. When I was a gym rat, I'd weigh myself at the gym most days. Now I'm not, and I get weighed at the doctor's office when I go.

My weight has been stable for quite a while. There was a time in my life when it was very unstable. Weighing myself didn't have any effect that I noticed. The last time I lost a large amount of weight, it was when I stopped a particular medication, and made no other changes. I didn't notice the med causing the weight gain, because prior to that, it really hadn't been stable. It stabilized while I was on the med, and then stabilized again nearly 25# lighter when I stopped it.

Except that by "stable," I mean that hydration and GI tract contents (and hormones, back when I had them ) could cause fluctuations within a 6-7# range within a week, and my weight will stay within that range over the long term. But if I were really obsessing over the scale, fluctuations of 5% of my body weight might definitely work on my head.

When I was spending the winters in a cloudy climate, I'd gain 4-5# over the winter and lose it back again as soon as I started getting exposure to natural sunlight in the spring. I'll typically drop 2-3# in the last weeks of marathon training. It really doesn't matter whether I get on the scale or not. It's just that I'm aware of them because of having been on the scale before.