I have mine mostly packed at 35+5, since babies 1 and 2 came at 39 and 36 weeks. I don't take much: a bath towel, toiletries, small hair dryer, yoga pants, nursing tank(s), zip-front sweat shirt, underwear, socks, Kindle, phone charger, wrap baby carrier, outfit for baby to wear home... I also made a list of a few things that need to go in last minute (e.g. wallet, cold sports drink, snacks...) to keep with the bag, and made sure DH knows where those things are.