Caffeine-free October

As of September 30, I'm going caffeine-free for a month. I've been having trouble sleeping lately and have had an almost constant headache for a while now. Last Thursday I woke up with the idea that maybe cutting out caffeine might help. I don't drink tons of caffeinated drinks, but probably more than I should. I really like Diet Coke and Diet Dr. Pepper. They're kind of my treat for when I get everyone down for a nap in the afternoon. Some people like chocolate, I like Diet Coke. But I am interested to see if laying off has any noticeable effect in my life. I'll try it for a month and if it doesn't work, I'm going back. For now my treat will have to be Fresca or Diet Squirt or Caffeine-Free Diet Coke and Dr. Pepper. 4 days down, 27 to go.