With this tool I am about to teach you, with a tiny bit of work, you will forever be able to memorize everything from debit card PINs to friends and relatives phone numbers and even your student I.D. number, employer I.D. number, or social security number. All this from one tiny little system that you can master in about 30 minutes or less. If you utilize it regularly for only a short period of time it will become like second nature to you and you can consider it a permanent mod to your brain housing group until the day you die, or go insane, whichever comes first. But go insane you may, because you just may find yourself memorizing the strangest things once you learn this, like the phone number of the taxi service you used 2 years ago on that two-day business trip to Tampa, or that phone number from that billboard you saw 6 months ago that you promised yourself you would call... or the 22-digit card number from the last "Phone-Home to Mexico" phone card you had to buy at the liquor store...
I did not make this system up, my old platoon sergeant in the Marines made everyone learn this so we could memorize eight/six-digit grid coordinates, and I don't know where he got it but i still use it all the time...
Step 1: Learn the basic "sound-number" system
There are only TEN basic consonant sounds in the english language, when grouped by the position of the mouth when saying them.
And, coincidentally enough, there are only ten basic digits that make up any number in our current arabic number system. (1-9 and 0)
(And, in order to make full use of this system, I am also going to add a bonus step at the end of this instructable that will cement in your brain these corresponding consonant sounds with their numbers...)
Without further ado, here is the system:
Number = Consonant sounds (letters) = Position of Mouth (Just to further understand the correlations)
1 = duh, tuh (d, t) = open, with tongue against the back of the front teeth
2 = nuh (n) = open, with tongue against the roof of the mouth
3 = muh (m) = lips closed
4 = ruh (r) = open, with tongue not touching anything
5 = luh (l) = open, with only the tip of the tongue against the roof
6 = chuh, shuh, juh (ch, sh, j) = lips pursed, with tongue obstructing airflow at the top
7 = guh, kuh (g, k) = open, with back of the tongue covering top of the throat
8 = fuh, vuh (f, v) = front top teeth against lower lip
9 = buh, puh (b, p) = lips closed, with puff of air
0 = suh, zuh (s, z) = open, tip of tongue grazing the roof of the mouth
To further help you memorize which numbers go with which sounds, here is a list of "peg" words that work extremely well with this system ( I will talk more about these "peg" words in the bonus step):
notice every number correlates with a word that has only one CONSONANT sound, with the exception of the number ten, which has two digits and corresponds to a word that has two consonant sounds...