1. Keep it simple and unscripted. Set no schedule for the kids. Let them dictate what they want to do.
2. Have a backup plan. Weather in the summer can get rainy or super hot pretty quickly. We always start our playdates outside, but I always have a backup plan incase the playdate needs to be moved inside. Thankfully we have a large indoor room for everyone to hang out in if need be.
3. Snacks! The best playdate snacks are grab and go ones like fruit, granola bars, vegetables cut into bite-sized shapes, etc.
4. Keep a supply of playdate equipment. Our favorites are bubble machines, sidewalk chalk, balls, and hula hoops! We just keep a big bin in the garage full of these things so that the kids can just grab what they need and go. It also makes clean up super easy at the end. Just collect it all and drop it in the box!