Kauai is my favorite island in Hawaii! When I went there I didn't have a
baby so really didn't pay attention to where you can get those. But I
thought the island was really deserted and it's definitely not very
convenient... I remember even the nice restaurants close around 8:30/9:00pm
'ish... I'd suggest bring the things you need in case you couldn't find a
place that's open or near you when you really need something.