I've been trying to cut back on the amount of caffeine I drink. I stopped drinking coffee, except on weekends, and have switched to mainly to tea (herbal and black tea). I feel less jittery. Recently I started making a hot drink out of cocoa powder and coconut oil and I love it. It has a bit of caffeine in it, but much less than a cup of coffee. According to this site, a glass of chocolate milk has about as much caffeine in it as a cup of decaf coffee.
I use 1 rounded teaspoon of Now Foods Organic Cocoa powder that I buy on Amazon, and 1 rounded tablespoon of Organic Coconut Oil (unrefined, because it has that great smell and taste). I add them to about 10 ounces of hot water, and mix it with an immersion blender. The result is a creamy cup of coconut-flavored unsweetened cocoa. When I make for my daughter I use a little hot milk with the water.