Before I found out I was pregnant and we were limited on space at our old place, I got rid of all of…

Before I found out I was pregnant and we were limited on space at our old place, I got rid of all of my daughters baby items other than most of her baby clothes. So now that I'm pregnant with baby #2 and waiting to find out the gender I feel like other than a snap n go, and now bassinet we have nothing for the baby and I feel so unprepared! :( So my question is, what are some essential baby items you would get for your second baby?