A friend recommended getting a baby/infant scale, just to keep track and for peace of mind that baby is growing well. So we found this one, which is reasonably priced. It has worked well and readings are pretty accurate. We weighed our NB before a pediatrician's appt once and got the same reading. Its easy to use, and includes a tare button (to account for extra weight, like a diaper) and a "hold" button, in case baby is squirmy. Turns out, this is the same brand of scale that is at our Pediatrician's office (just not as nice, of course). Recommend!