The Secret to Grilled Cheese

I can cook a lot of different kinds of foods. I usually cook listening to music. Maybe if I had an i pod touch I'd be a better cook. The one that I have the most problem with is also the simplest. I can't cook a grilled cheese sandwich. I burn it all the time and the cheese never seems to melt. On Pinterest I saw a graphic where it goes butter bread butter cheese butter bread butter. That's a lot of butter. Usually I just butter the outside of the sandwich instead of the inside. I tried this and it actually works. Maybe it's something else that everyone has been doing all along and I was just the last person to know. I'm sure turning down the heat also helps. Do you put butter on the inside of your grilled cheese sandwiches?