Packing baby's bag

I have been wondering this and am so curious. This is my second pregnancy and for my first I only packed a bag for myself (my husband packed his). And I brought going home clothes for baby in my bag. I didn't pack a seperate bag for baby. They provide everything you need at the hospital and it's so much easier cleaning the belly button and doing skin to skin without baby having on clothes. Curious what all you would even need to pack and bring in a baby bag? Fill me in ladies.