Working well on a project so I'm absorbed in it (in "Flow")
Reading a good book
Eating out with friends and/or family
Spending time with a good friend
Writing
Planning something
Riding in the car with my husband driving, discussing something of interest to both of us
Riding in the car on a journey, through small towns, imagining what it would be like to live there
My husband reading aloud to me while I massage his crippled foot
Breakfast
Clean sheets
Being warm and dry when it's cold and wet out