I think it would be awesome if there was a way to enter information regarding alcohol and caffeine intake (or any other input the user wanted to track) to see how these activities effect sleep, heart rate, etc. Over time, the data could give great insight into how various activities effected the individual user. Fitbit has a massive amount of data available on each user, I'd love to be able to use this data to track specific activities and receive useful reports. Thanks!
