me and my roommates are trying to plan this 30th birthday thing for our friend next month and we are all on different pages. we want to buy all the decorations and gifts from Amazon but its such a pain sending links back and forth and forgetting who liked what. I have no idea where to start and I am really not tech savvy at all so sorry if this is a super basic thing.

I was looking around the site but i cant find a way for us to all put stuff in one cart together and see the total before we buy. is there an app or a setting where we can all shop at the same time on the same list?