When I first did Insanity this time last year the scale told me I GAINED 10lbs but when I looked at my before and after photos it looked like I lost 20. I HIGHLY suggest starting to take photos of yourself instead of the scale!
If you can physically toss the scale why not set up an incentive? Say, you'll buy yourself something (non-food related obviously) if you can go one week without stepping on it?
"Be the change you wish to see in the world." - Ghandi