Do you have a hard time remembering numbers?
Phone numbers
Zip codes
Dates
Credit card numbers
PIN numbers
Physical and mathematical constants. This technique has been used to
memorize Pi to 5000 places.
...
Then 2Know can help - a lot!
2Know is based on a mnemonic system that has proven its effectiveness
over hundreds of years. The system transforms meaningless numerical
strings into words and phrases. In the system, each numeral, 0-9, is
represented by a consonant sound. These sounds are used to form words
that can be more easily remembered than the raw numbers.
http://got2know.net/2Know/index.html