What you needed when you had twins

Hey twin mommies FTM here, I am currently registering for some items but am having a hard time trying to decide what to register for - it's very overwhelming all of the items when you walk in to the store - we have our stroller, car seats, cribs/mattress/sheets, clothes, play pen/pack so I think we have some of the essentials - but what do you recommend having in those first weeks/months and beyond - thanks so much!