Here's a shot of my weight loss chart, from Weight Watcher:
It's a little tough to read but that purple line is my goal weight and the jagged green line shows my progress since I started. There are three stars along the way, demarcating 5 lb lost, 5% of my body weight lost, and another 5 lb lost, respectively. As you can see there have been a few spikes where I've gained, but overall it's really rather lovely to see it going down the way it does.
It's one thing I love to be able to look at as it gives a great visual reference of where I started and how far I've come.