Reply with a picture, not a question
When a message arrives with a logo attached, convert it and send back the stitch simulation with the size you recommend. It answers three unspoken questions at once: can you do it, will it look right, and do you know what you are doing.
Standardise three placements
Left chest at 80mm, cap front at 120mm, and a 75mm patch cover the majority of custom requests. Keep a converted file for each placement and your quoting turns into a lookup instead of a project.
- Left chest — 75-90mm wide, the default for polos and tees.
- Cap front — 110-130mm wide, re-sequenced for curved panels.
- Patch — 60-90mm, edge finish decided up front.
Price the confidence, not the minutes
Keep a setup fee on the listing. Buyers read a setup fee as professionalism, and it stops the free-revision spiral. Because the conversion itself takes minutes, that fee becomes margin instead of a pass-through to a digitizer.