To thrive in an Envelope Stuffing position, you need strong manual dexterity, attention to detail, and the ability to work quickly and efficiently, typically requiring no formal education or certifications. Basic familiarity with sorting machinery or folding tools can be helpful, but most processes are manual and learned on the job. Reliability, consistency, and the ability to perform repetitive tasks with accuracy are key soft skills for this role. These qualities help ensure high productivity, error-free work, and smooth completion of high-volume mailing tasks.