DON'T. My weigh day is Monday but today I couldn't resist having a peek and guess what ..........I have gained 8lbs since Monday morning. Now I know I have not gained 8lb of fat but my ankles are like bucketts, I almost slosh when I walk so I know that its got to be water retention. But it just shows how weight fluctuates daily and can give us false readings. If you know you have stuck to plan 100% then you have nothing to worry about, trust the scales but only ONCE A WEEK. I will deffinately practice what I preach from now on. Good job I know I have stuck to plan though or I would be devistated by that reading and on fridge feast by now lol.