what else should i get?

FTM here. excited and lost. things we have purchased + gotten as gifts so far brest pump set some newborn clothes mittens and socks playpen/cot pram what else should we get? since another babyfair is next mth, we wanna list more down and discuss. things we are getting : new bby mattress baby carrier (would sling better or the hip type) sterilizer bottles set electronic rocker what else should we get?