Visual motivation

I've almost lost 10 pounds (didn't really notice it, but coworkers did) and saw this idea on the website Pinterest. I've now put 2 mason jars in my bathroom, one filled with marbles, each marble representing 1 pound I want to loose. The other one has 7 in it, representing pounds I've lost. And to see it EVERYDAY makes such a difference! It really makes me want to go to the gym, and add to my lost jar! I'm a visual person and lovvvved this idea!
Just thought I'd share :)