How do you manage users effectively in Salesforce?

Effective user management includes:

1. Creating user accounts with appropriate profiles and roles.
2. Using permission sets and permission set groups to extend access without changing profiles.
3. Configuring login hours and IP ranges per profile for security.
4. Freezing users (disabling login without deleting) when employees leave.
5. Monitoring login history and user activity via Setup > Login History.
6. Reassigning records from deactivated users using mass transfer or flows.
7. Using public groups and queues for record assignment and list view sharing. Salesforce recommends the principle of least privilege — start with the most restrictive access and open up as needed.