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David Green

David is a developer at Hart who sells video games and comic books on eBay in his spare time. His technical background and seller experience give him a practical, grounded perspective on how marketplaces and workflows really operate.

Articles by David Green

eBay return management automation for high-volume sellers

Shipping & Fulfillment

2 min read

eBay return management automation for high-volume sellers

by David Green

Apr 7, 2026

eBay seller tracking cost of goods sold with a printed inventory spreadsheet and bookkeeping software open side by side

Taxes & Accounting

2 min read

eBay bookkeeping for sellers

by David Green

Apr 7, 2026

How do you cancel a listing on eBay and not wreck your metrics doing it

Growth & Operations

2 min read

How do you cancel a listing on eBay and not wreck your metrics doing it

by David Green

Mar 20, 2026

Growth & Operations

2 min read

eBay Chrome extensions you must know as an eBay Seller.

by David Green

Mar 19, 2026

Education & Guides

2 min read

How to Increase eBay Selling Limits

by David Green

Mar 12, 2026