OK, so this is so minor, but became so necessary when I didn't have one in my hospital delivery bag. You see, by the end of my stay, I had tons of dirty baby clothes I'd so lovingly packed for my new arrival, having been tarnished with poop, pee, and spit-up. I ended up stuffing the crusty onesies and pajamas back in my overnight bag, wishing I'd had a separate dirty clothes bag instead.