Playing the piano with my dog listening attentively.
People come and go in life, but I can control the stuff I own. So I guess I'd have to say that my "stuff" also makes me happy/content.
Sitting on a big flat rock next to a fast-moving stream or river and dangling my feet in it on a hot day of hiking.
Hiking on a misty, cool, quiet day, the thud of my hiking boots on solid packed earth mixed with the amplified sounds of nature all around me.
Being not unhappy makes me happy.
Memories of my early years, happy times.
Feeling strong and capable.
Thinking a new or creative thought; daydreaming.
Writing, reading, movies, songs, sunshine when I am in the shade.
Being recognized as being correct after having initially been judged wrong. (Cassandra)
All of the things I have learned.