Which of the following is NOT typically done in post service procedures?

The application of nail polish is generally considered part of the actual service rather than a post-service procedure. Post-service procedures are actions taken after the primary service has been completed to ensure cleanliness, safety, and proper maintenance of tools and equipment.

Sanitizing clients' hands, discarding one-time use implements, and disinfecting metal implements are all crucial steps taken after the service to promote hygiene and prevent any potential contamination or infections. These practices help maintain a safe environment for both the client and the technician. In contrast, applying nail polish is part of the service delivery, as it enhances the aesthetic finish of the nails but does not contribute to the cleanliness or safety protocols that follow the service. Thus, it is not categorized as a post-service procedure.