Big things:
God, country, my family, Christian friends, the church, my education, my job, summer, fall colors, blue skies, a summer breeze, the first snow of winter, a sunrise, summer thunderstorms, hearing crickets at night
Small things:
A relatively stable operating system, a generous webspace provider, cheap gas prices, being able to ski in winter, my car, my digital camera, being able to visit China this year, being able to work from home, Little Debbie Snack Cakes