Susan:
At this time your only option is to retain the users, otherwise you get the DIC error on the Notes.
Softrak:
A possible solution for all modules (as almost all have notes) is to be able to make the users inactive and have DIC skip inactive users.
Bob:
A combine Users function for Toolkit may seem useful but for me I would prefer an option that allows me to retain a record of who entered the note in the first place.