In professional beauty salons makeup artists perform makeup in stages, looking not only at the model herself, but also at her reflection in the mirror. This allows stylists to accurately assess the result of their work.
Some companies are deciding to use remote employees as opposed to in-house employees because of the cost savings and other benefits. If you're an employer, don't let this throw you off—remote workers can be just as effective and productive as traditional in-office workers, but it does require a little extra work from both the employer and the employee.