Invest in cheap white t-shirts (hanes, cost co's kirkland brand etc...). When you get thrown up on, peed on, pooped on, etc... you can just slap a new one on. Oh ya and baby wipes, boxes and boxes of baby wipes. Freezer, stock the freezer with easy cook meals. When you haven't slept for two days straight the last thing you are going to want to do is cook. Just remember things will get better for all three of you but at first it is going to be rough.