Attend the Oscars.
Attend the Chinese New Year parade in San Francisco.
Be on Jeopardy!
Bike a century.
Build a clock from scratch (buying gears is okay, a kit is not).
Climb a difficult but nontechnical mountain: Perhaps Long's Peak, Fuji, or Kilimanjaro.
Dive a shipwreck.
Do the Bay Bridge Walk.
Drink a really good martini.
Drive a car at over 120mph.
Drive down the CA coast.
Earn a belt in a martial art.
Fly an airplane. No need for a pilot's license, I just want to fly a plane once.
Get a barbershop straight-razor shave.
Go off of an Olympic ski jump.
Go on a police ride-along.
Have a speaking role in a TV show or movie.
Kill a rattlesnake, eat it, and make a hatband from its skin.
Learn a foreign language.
Learn to draw better.
Learn to juggle 3 clubs and 4 balls (not at the same time).
Learn to play a musical instrument competently.
Learn to ride a motorcycle.
Learn to rollerblade well.
Learn to sail, and take a week(s)-long sailing vacation with no crew.
Learn to snowboard.
Learn to tie a variety of knots.
Learn to work metal.
Learn to write beautifully (italic?).
Live for (at least) a few months in the country.
Live for (at least) a few months in NYC.
Make liquid-nitrogen ice cream.
Own a beach house.
Own a convertible.
Own a Jeep Wrangler.
Pet a tiger.
Publish a novel.
Raft a class-5 whitewater.
Read the entire bible.
Ride in a blimp.
Ride in a glider.
Ride in a helicopter.
Ride in a maglev train (must exceed 200mph).
See a total solar eclipse.
See the Clock of the Long Now, assuming it's built in my lifetime; if not, then the prototype in London.
See the aurora borealis.
Skate on a frozen body of water.
Stay at East Brother Light Station again, this time for two nights and with friends.
Take an archery class.
Take a multi-day bike ride.
Take a multi-day hike.
Take a vacation in Seaside, FL.
Take vocal training.
Through-hike the John Muir Trail.
Visit the Akihabara.
Visit the Grand Canyon.
Visit Hancock Shaker Village.
Visit Las Vegas.
Visit Legoland (either one).
Visit the Tiger's Nest.
Watch a spider spin an entire web (the big, Charlotte's Web kind).