Feeling lazy, I agreed to drive my brother to work Saturday afternoon, and I saw all the people out having fun: couples walking along in the sunshine, kids riding their bikes and skateboards, groups sitting out on patios drinking beers and laughing.  I wasn't doing any of that, felt sorry for myself, and tried to appreciate it by proxy or something.
I went to the grocery store so I could say I did something productive with my day.  When I parked, my CD played the song "The Pretender," and I lost it in my car.  Pit party, gross.  Got it together, went in the store, and sang to myself as I walked around getting the basics.  One of the workers smiled and said hi, so of course I smiled back and said Hi there!  He came closer and said, "I want to know your secret.  Every time I see you in here, you're smiling wide.  Always happy.  So?  You gonna tell me?"  I replied, "Just optimism!  That's all I got."
He really made my day.  Not to mention a slew of ridiculous upbeat texts from Kurt while I was in the store.  Thanks, buddy.
Let's face it.  I'm a social creature.  If I don't have friend or family entertainment built in to a free day's plans, I'm probably going to stay home and eat watermelon with Will & Grace.  I wish I were out exploring the city on my own, but that's not how I operate.  I would NEVER make it on a deserted island.