J uly is cell phone courtesy month! This is an article on cell phone etiquette. To most of us, cell phones are a life saver, but rude cell phone users are the thorns in our sides. They're pretty much anywhere that there's a cell phone signal. The thing is, we could all probably use a little primer on cell phone etiquette. After all, most people who are being annoying don't realize they're being annoying. Here are Smart Reminders: Keep a 10-foot (3 meter) distance between you and anyone else whenever you talk on your phone. No exceptions. Don't talk too loud. Generally you don't have to shout in the microphone to be heard on the other end. Don't make calls while driving, shopping, banking, waiting in line, or doing pretty much anything that involves interacting with other human beings. Don't talk on the phone in any enclosed spaces, even if you're more than 10 feet away from anyone. They can still hear you (because it's an enclosed sp...