Ok, just thought of a simple idea.

You could say that the first letter, is always an actual letter.

When the letter appears for the second time, then replace it with it's corresponding number.

You could use all sorts of forumalas, depending on how good your memory is for formulas and rules.

Persoanlly I'm good at this.But you don't have to egt too heavy with it.Aplhanumeric is still better than just numbers or letters.

Perhaps a smple approach would be:

-Actual letter first occurrence of the letter.
-Next occurrence of the letter replace with corresponding number.
-Next occurrence of the letter, use the actual letter........

and so on.

However, a problem that could occur here is remembering where youa re in the sequence.

Say that you have quite a few vowels in a long password of 30 letters.

Let's say you have seven 'A's.

Now it's easy following the letter, number, letter, number rule if all the A's are after each other.
But more likely the 'A's will be spread out.

In between writing out theother letters, you will ahve to remember how the next 'A' will be defined.

Will it be a number or a letter.

So, this is the next thing to figure out a way of remembering more easily.

Hmmmm, let me think...........

[This message has been edited by flex22 (edited April 24, 2004).]