If you want to know the names of hand tools sold most often in the world, or how to make some particular thing, or the history of some subject, or anything at all, chances are you can learn all about it on the Internet. You start by looking up key words in search engines. If that does not completely do the trick, you join a forum where you can correspond with other people on the subject. You register with the forum, selecting a user name and a password. If somebody guesses your password, the mischief that could be done is little, but a password is very important to your future when it comes to things like online banking and a few other things. Then, there are uses for passwords that are so critical that we dare not mention them publicly.

      So, how can you make up an impossible-to-guess password that you can actually remember? Here are some suggestions:

      First of all, nothing is impossible - just unlikely. A rare word is hard to guess, but people occasionally use rare words. That's what they're for. On the other hand, a short original poem will be duplicated less often than once in a lifetime. Password 1: It's not 81, but the Hatti sun.

      Notice that a poem used as a password does not need to make sense. It is more memorable if it rhymes. Password 1 has the merit of using upper-case letters, lower-case letters, numerals and punctuation. Few sites require all four types of characters. Some disallow spaces but that is getting rare. In that case password 2 will do: It'snot81,buttheHattisun. Password 3 uses somewhat arbitrary capitalization: ItisnotTHENbutWHEN

      You don't need to follow the rules of writing, but you do need to remember the password.

      As I said, rhyming can be helpful. You can get a list of words that rhyme with "1" or "2" or almost anything else at rhymer.com. I mention numerals to rhyme with because that's an easy way to wrangle numbers into your password.

      Here is something else you can do to make your password memorable: Use words that refer to visual scenes and solid objects (not necessarily motionless). It's an evolution thing. Our visual processing is older and in some ways smarter than our verbal processing.

      Feel free to send me your creations. I'll never tell.