are you going to a gym? I just use the scale at the Y. I have a cheap one, but it seems to do ok as long as you zero it out every time (step on it real quick to make the needle bounce a little, put it on zero, step on it real quick again, and make sure it rests on zero) and make sure it's in the same spot on the floor. My house may have uneven floors!
Also, the title of your thread should just be Scales. 's is possessive.
Nitpicky, I know, but nothing here belongs to the scale, for sure not any of us