Yesterday I classify as a great day. Nothing real special, JUST:

-A 40 mile bike ride in beautiful summer weather
-An afternoon at the beach reading the newspaper and taking the ocassional swim
-Dinner at a nice little Italian restaurant with my wife of 40 years
-Ice cream cone for dessert on the way home (frozen pudding)
-Watching the home team win in HD on a flat screen

Not sure that this would qualify as a great day for many, but I thought is was as good as it gets.