I found this graphic on another site! I am very excited to print it out and use one myself. I am a very visual person....so I am going to hang this up where I can see it!!! I have included the directions from the original website & her message to how she used it. I think the first way sound difficult - So I will use her second suggestion.
I have also posted this website in my weight loss binder on the left!

Directions from: http://www.dwlz.com/thermometer2.html
How to fill in the lines:
1. On the 0% line write down your starting weight.
2 On the 100% line write your desired ending weight.
3. Subtract the ending weight from the starting weight. This is your desired weight loss. Write it down on a separate piece of paper.
4. Each of the individual lines represents 2% of your total weight loss. Multiply your desired weight loss by 0.02. Write down the result on your scratch paper. We will call this value the 2% value.
5. Now, subtract the 2% value you found in step four from your Starting weight. Write the result down on the line right above the line you wrote your Starting weight on.
6. For each line, all the way up, subtract the 2% value from the line which is already filled in, and then write the result on the line directly above it. Continue this until you reach the top.
2 On the 100% line write your desired ending weight.
3. Subtract the ending weight from the starting weight. This is your desired weight loss. Write it down on a separate piece of paper.
4. Each of the individual lines represents 2% of your total weight loss. Multiply your desired weight loss by 0.02. Write down the result on your scratch paper. We will call this value the 2% value.
5. Now, subtract the 2% value you found in step four from your Starting weight. Write the result down on the line right above the line you wrote your Starting weight on.
6. For each line, all the way up, subtract the 2% value from the line which is already filled in, and then write the result on the line directly above it. Continue this until you reach the top.
****EASIER WAY TO USE IT (this is what the designer said and how she used it)
"Another way to fill this in is to put your starting weight at the bottom and put in 1 lb. for every line ( I use two of these - one went from 233 lbs to 185 lbs - then the second one was 184 lbs to 135 lbs) - this way you aren't always looking at the BIG picture, if you have a lot to lose like I did. I filled in the thermometer with a yellow highlighter as I lost (wrote the date it and circled the weight next to it)".
- THANKS DOTTI!!!!