It does change a lot for me too, but I find this post:
http://www.3fatchicks.com/forum/goal...laurens-b.html
a constant source of inspiration as this girl has done so incredibly well, like many others here, and her starting photos look so similar to how I looked at my starting weight. I know that if she looked like I did once, I can definitely look how she does now!
Also, I browse celebrities who are the same height as me and are at healthy weights. I'm under no illusion that I will look as perfect as these ladies do when I'm done losing weight, as I know I won't, but something to strive for! Here are mine: Kate Winslet, Jennifer Aniston, Kristen Stewart, Nina Dobrev, Sophia Bush, just to name a few!