Another Dozen Examples

61. Build a treehouse.
62. Lead the restoration of a habitat, or a vacant lot, or a small park.
63. Write down and analyze your dreams.
64. Learn American Sign Language.
65. Become a backyard astronomer.
66. Do a work tour with a not-for-profit organization, either domestically or in another country.
67. Play Internet chess, bridge, poker or another game.
68. Develop a stand-up comedy routine and deliver it at a comedy club on amateur night.
69. Learn to recognize by sound 100 or more famous classical works of music.
70. Go horseback riding.
71. Take a "blue highway" tour (drive entirely on secondary roads).
72. Paint a ceramic dinnerware set (or several).