The summer of 2020 was one of the hottest seasons on record for the Northern Hemisphere. And many meteorologists are predicting that this summer could be just as hot, if not hotter, in most of the United States. So to keep yourself from sweating into a puddle on the floor, you'll no doubt be trying to stay cool indoors. Sure, you could set your thermostat as low as it can go (some call the setting “meat locker” while others prefer “cruel office”). Or you can employ some expert tips to keep your place cool with or without AC. Even if you're blessed with central air, you can still utilize these tips to keep your bill as low as your temps.