Editor's note: We know you're happy deep down. You're alive, right? But sometimes you need a little boost, a slight reminder, or a cheery burst of color and a few choice words to get yourself back in gear. Soooooo we're happy (get it?) to present this collection of wallpapers that you can turn to when you're feeling a little down. Get one for yourself and spread the love by sending one to a friend. Now go make it a great day!