Here's a project for a sweltering summer day. Keep cool in front of an open fridge by giving it a thorough cleaning. Remove food, condiments, and fridge liners and wipe down everything with warm water and mild dish soap. Clean crumbs from the gasket, as well as wire racks, crevices, and behind crisper drawers. Finally, wipe condiment jars and cartons to remove sticky spots before returning them to the fridge.