I just wanted to follow up and say that I bought a scale! Not only that I used it as a non-food incentive to get out of the house when I was feeling awful.
I had to go to my University to get some files I couldn't download off campus. I really didn't want to get out of the house since I was feeling dreadful, but I really needed the files to finish a project. I considered telling my prof that I was ill (which I was) and couldn't finish the project. But I had waited until the last day to get it done anyway, so I really needed to get it done.
I was trying to think of some reward for that extra push to get out of the house. (I really don't normally need an incentive to leave but I was feeling so dreadful) Of course the first thing I thought of was FOOD and I had almost talked myself into getting something dreadful with the excuse that I wasn't feeling good. But I stopped myself and came up with a healthier alternative! I remembered that a couple of you had recommended a scale from Target and there was one along the way so it seemed like the perfect solution.
Incidentally, I THOUGHT I was buying the Escali scale that mammasita and Suzanne recommended but I just looked at it and it is different! I got another scale for 29.99 that had the same basic features.
Taylor Digital Scale
It seems to be working great so far! I'm really pleased with it. Thank you all for your suggestions. Not only did they convince me that I could get a simple scale and be happy with it, but they also helped me to stay on the straight and narrow!