Remember that to help keep track of who added what note to a patron's account, sign the note using the format "LibraryCode, FirstName LastInitial Date".
Library code is the two-letter abbreviation commonly used to indicate library, especially in reports (ie, BE=Berlin, KI=Kingston, PI=Pine River, WN=Winneconne).
The first name and last initial, combined with the library, helps narrow down who created the note, in case there are questions as to if the note still should apply, or who to contact for more details.
A note example: "Verify email. OS Melissa K 4/25/2018".