I started weighing daily so I could see my whooshes better. I haven't been at it for a full month yet, so I am not sure how it correlates with my hormones. At the risk of TMI - it's at least partially related to bm's for me. I'm not a regular kind of gal

I also retain water when I'm sore from exercise. I have been working on low sodium lately, and I notice if I have a higher sodium day, I'll be up half a pound or so the next day.
At first, the daily fluctuations drove me CRAZY so I was a weekly weigher. Now that I am comfortable with the fact that the trend is always down, the daily is working for me.
Interesting about the wine though... the last 2 times I've had some, there's been a whoosh the next day... hmm.