This is great! I wish I had seen this tutorial before I attempted replacing my HAVC bulb! The piece of paper is a great idea. I did not think to take that precaution and lost one of the replacement bulbs into the abyss. Even worse, I set my iPhone down and knocked it into the hole as well! Fortunate...

Do you know what kind of bulbs the bottom row of buttons takes?

Never mind, they're 2182 bulbs.