I'm making the same suggestion I did a year ago: Start a "Ta Da List" or a "Jar of Awesomeness" to capture all the cool, fun, interesting, noteworthy moments that happen to you, your team, and your entire company.
Review them at the end of each month, each quarter, or at your year end meeting. Post them online, turn them into a song, send them out in an email blast... but the key is to make sure you capture them! It's a proven way to boost your gratitude, be happier, and sustain momentum at work and in life.