I often find motivation in buying clothes a few sizes smaller, because I imagine how good those would look on me after I lose the extra weight
I don't think I'm a shallow person and I know dieting is about being healthy, but still, we all want to be admired and complimented, so why not admit it?
Also, I do not use regular scales. Sometimes I can go days without losing a single gram and I don't want that to bring me down. So I use one of those quantum scales, they don't display a number, simply inform you when your weight starts to change again.
And as long as we're on the topic of motivation, I also try and give my self a little gift when I feel that I've been a "good girl" and stuck to my workout routine. A week ago I was so proud of myself that I bough a pair of earrings, nothing too extravagant, but still, it felt good.
Good luck to everyone!