Memory enhancement device and method

A device for storing a serial string of confidential alpha numeric symbols in public view without compromising the confidentiality thereof, yet enabling a person having knowledge of the numbers to recognize and recall the numbers by reference to the device, said device comprising:

• a carrier surface having dimensions that permit its carriage within a wallet pocket;
• a matrix of vertically and horizontally contiguous graphic boxes positioned on the carrier surface and having empty spaces within the boxes for later placement of numerals therein, each box having an alignment with other boxes along at least two diagonals within the matrix as part of at least two rows of boxes in linear array;
• said matrix including at least one serial string of confidential numbers in a sequential linear array of boxes along one of the aligned diagonals of the matrix;
• the remaining boxes within the matrix having random numbers therein to disguise the identity and location of the stored confidential numbers.