I think life is made up of the little things. Not the job promotion or the house you bought (though they can help), but the time your friend sent you a card or when you had a nice night in watching a movie with a good friend or spent a lazy afternoon reading at a coffee shop. Little things are what make us happy or get us down. I can have an overall awful day, but something so small can make it better. Or my day can be going fine and a little annoyance will ruin it.