Baby shower gift giving etiquette?


My sister's Baby shower is this weekend! I am hosting and can't wait!! I've bought so much stuff for my little nephew it's almost too much. My question is how much do I give her as gifts to open and how much to set aside and just give her after the shower? I've bought probably 15 packs of diapers, 10 wipes, 6 bottle packs, and just lots of other odd and end things. I did get her one big gift(pack n play) I just don't wanna be too repetitive with gift bags lol. or is there anything unique you guys can think of to display the multiples I got?