Diaper data

The Trixie Tracker is for the obsessive, overly attentive, data-driven parent:

Trixie Tracker crunches simple daily input into rich, informative charts, graphs and striking visual summaries. You can use the software to record sleep, diapers, bottles, solids, medicine, nursing, and pumping activity. When you sign up for an account, you'll choose a personal web address which will become your Trixie Tracker Site. As you start recording events you'll better understand your baby's daily patterns and needs, and you can share that information online with family and friends.

There's a free trial but it costs $14.95 for three months. But how much data do you really need to understand a cycle like this: Sleep, eat, poop, sleep, eat, poop, sleep, eat, poop…