The 31 days is up. The Paleo Challenge is over. The way I eat has been altered forever. There has certainly been some highs and lows, but eating this diet has been an overwhelmingly positive experience for me - mentally, physically, and emotionally - and I will probably continue with it. I will certainly reintroduce some whole grains and a little dairy (can you really live without cheese?), but I will keep eating like this because it feels great. I feel better now than I did when I was 20 years old (18 years ago). Because I am a geek, I have compiled a Harper's style index, below, to summarize my Paleo Diet experience... 31 days - length of time I ate like a cave man $650 - approximate grocery bill for the month 20 - number of meals that I prepared and cooked from scratch in the last month 100% - percentage increase over all previous months of my life combined 195lbs - my weight prior to the challenge 178lbs - my weight at the end of the challenge 75 - approximate number o...