Last week’s heat wave may have only been a harbinger of what’s to come in August. To beat the heat, proper ventilation is your best strategy, Real Simple says. If you don’t have air conditioning in your home, place fans in the windows facing outward to draw hot air out of the house. Fans can also add to your air-conditioned comfort by circulating the drier, cooler air by adding a gentle breeze inside the home. And you can make your own air conditioner by placing a bowl of ice in front of a fan — and placing yourself in front of that.