Google Contacts, the address book built into Gmail, lets you keep track of all your contacts, see when you last interacted with them, and more.
Turn rejected print proofs into version-linked design revisions.
Your designer gets the changes reviewers requested, tied to the rejected file version, with a link back to the approval.
Flag old client proofs and request current files.
Your reviewers can decide on the intended creative file. The Agent flags outdated versions and asks the owner for the current one.