Everyone needs a scale

You can't even think about starting this challenge without a kitchen scale. You may pick one up at Bed Bath and Beyond or any such store that sells kitchen equipment. I am sure you can get one for under $20. Nothing fancy is needed, I have been using mine for a few years now and haven't even had to replace the batteries. I will pick a few up from somewhere and have them available for purchase at the gym for whatever they cost to buy.