A few things experienced parents wish they had known: register for consumables like diapers, wipes, and diaper cream in large quantities — you will use them all. Include a range of price points so that everyone from your college roommate to your parents can find something in their budget. Add a few treat-yourself items: a nice robe for postpartum recovery, a good water bottle, or a meal delivery gift card.
Most registries allow group gifting for big-ticket items. If there is a stroller or car seat you want that costs several hundred dollars, enable group gifting so multiple people can contribute. This is especially helpful for baby shower guests who want to go in together on a gift.
Finally, take advantage of registry completion discounts. Amazon, Target, and Babylist all offer 10-15 percent off remaining items after a set date. This makes it worth registering for expensive items even if you expect to buy them yourself.