Question: How can I cool my home when It's hot outside?
Option 0: Use curtains made from heavy plastic and dunk the bottoms of them in buckets of water with your windows closed, when the breeze passes through, the water on the curtains will help cool the air.
Option 1: Use curtains made from natural materials and dunk the bottoms of them in buckets of water with your windows open, when the breeze passes through, the water on the curtains will help cool the air.
Answer: 1