What are everyone's thoughts on the almighty scale?

Sometimes I think it's good to weigh once a week if I think I'm losing because it gives me incentive to lose more! On the other hand, if I think I've lost some weight I think "Hey, I just lost two pounds, I can have that piece of cake!"

If I think I'm gaining a few pounds I'm afraid to step on the scale, and then it starts getting out of hand until I finally have the guts to do it. THEN it's shock therapy!! It's the old "fight or flight" thing!

Also, (I've never been there) but when you're at goal weight, how often should you weigh yourself?

What do you guys think?
Hugs,
LS