Glow sticks in the pool, great for night swimming! Not sure this would be the best idea for a big in ground pool (would probably take a couple hundred sticks), but would definitely be cool in a kid pool or an above ground pool!
Inspo from our friends! It was terribly irresponsible, I suppose. The nights we stayed up walking in the woods, or painting in the Foley's barn. Five in the morning was our bedtime, and who was there to stop us? As far as I remember, we're alone.