Stupid things to do if your bored:

Take a tour of the Eustachian Tubes
Drive through the Carpal Tunnel
Visit the Islets Of Langerhans
Go to the museum to see The Statue Of Limitations
Visit my lawyer to see how my tubal litagation is going.

Huh, I was thinking it was stuff like:

Paint your front teeth with Wite-Out , but I can see I’m on the wrong track.

Not that I would do that, of course.

Laugh at people that don’t know the difference between your and you’re.

Nitpick.

Drink copious amounts of beer.

Or Vodka

Make those little v-shaped pieces of folded paper that you propel with a rubber band. Shoot them at objects or nearby persons.

Come up with a great plan for yesterday.

[ul]
[li]Memorize as many prime numbers as you can.[/li][li]Memorize pi to however many digits as your brain can handle.[/li][li]Memorize the exponents (powers) of numbers.[/li][li]Memorize square roots of non-square numbers. For bonus points, memorize cubic roots.[/li][/ul]

Calculate the rate at which your toenails grow in miles per hour.

Arrange all the books in your bookshelves alphabetically by the author’s first name.

Edge up to strangers on the street and quietly ask, “What is the codeword for today?”

Call the Secret Service and threaten to kill the president. (Your life will not be boring any more. Guaranteed.)

Clean out your ears with Q-Tips.

Organize all your socks by colour.

Take up learning how to unicycle. Or juggle.

I once weighed a piece of origami paper down to a milligram.

I like to compare definitions of words in different dictionaries.

Sort the items in your stationary tray or top drawer alphabetically.

Your life sounds fascinating!

Don’t leave out yore.

Not knowing the difference and not using the correct word are different things all together.

Learn all the elements listed in the Periodic Table (sigh)

"…and there may be many others but they haven’t been discar-vered."

Spend a few hours perusing threads on the Straight Dope Message Boards.

Masturbate for 8 hours and 40 minutes..