Olivia loves this!

"My husband and I SWORE by for the first few months: Baby Connect. We used it to track everything: the usual stuff (diaper changes, bottles, etc.), medical stuff (when they'd been given medicine, what their heights/weight were at each dr.'s appointment), and then more fun things like milestones and such. I had bought those Itzbeen timers for tracking, but the app ended up being way more useful in the end. You're supposed to be able to download all the info to an account or something, too, so you'll always have any data you enter (although we haven't gotten around to doing that yet :))"