9. Housekeeping
Housekeeping, next on our list of part-time jobs that don’t deal with customers is a great way to avoid the interaction with customers. Within companies that provide housekeeping services, your job usually is to clean the house after the guests leave a place, so you work completely alone and you don’t have to deal with anyone or you can clean private houses. You can earn a decent amount of money while still avoiding the stress of interacting with customers.