Methods to measure body fat

Over the next few days I will be wondering about some of these alternative ways to measure weight loss.
**Body fat percentage using a tape measure, "Rope and Choke"
**Calipers, Skin fold method
**Bioelectric Impedance Analysis (BIA)

Also wondering if there are historical methods of measuring fat. Maybe not.
11-2-10
Today I measured myself according to the Rope and Choke method. The name was given to it by members of the army who used it as a way of measuring people. Of course I documented it. I am fairly objective about my body, I don't hate it all but the one major spot I dislike is my belly. Its all very well for the man on Shirley Valentine to say that stretch marks are a sign of your life but I can't really grow to love them. But, I want to be as truthful as possible in this project. Including my vanities my petty insecurities, the moments when I am selfish and don't see a big belly as a sign of luck and choice. I have posted the pictures below un-doctored. I wanted to make them more arty, maybe black and white, do a bit of airbrushing. I feel that by showing myself in all my unflattering glory I can start to balance out my use of pictures of anonymous starving people a little. To Show my fat bits shows the other side of the grizzly coin.