I love this challenge because I see people opening doors for others ALL the time. It is one of the simplest and most common kind acts we witness every day and it is so easy to give back. Today, I witnessed three people holding doors for others---at work, at the store, and at a restaurant. On top of that, I had the opportunity to hold the door for my friend. Door holding almost always comes with a smile and a word or two, making it even more special!