It's been over a year now since I became not only merely a Senior, but really most sincerely a Senior citizen, however I still keep discovering new government programs offering this that and the other. None of which, apparently by design, can access the PII already submitted to other programs...
So I print out the required form and zip through questions (sadly none have yet requested the serial number of my rifle in basic training all these many decades ago, and which was so deeply imprinted (engraved?) by the instructors during that 12 week adventure that I can still snap it out while not having a clue as to the phone number I've had for a decade...): height, weight, eye colour, hair colour, distinguishing marks... I stop, get up, go to mirror, come back, cross out the check by brown and re-check by grey hair...