Gridwork Systems

You flip the items. AI does the paperwork. The tracker does the math.

Most resellers lose money in three places: listings that never get found, prices guessed from thin air, and buyers who walk away when replies take a day. This toolkit fixes all three.

INCLUDES: the Quick-Start Playbook (PDF) - the zero-cash start and the 10-minute listing workflow; 36 field-tested AI prompts for listing, pricing, sourcing, buyer handling and operations; the Profit Calculator and Inventory Tracker (Excel) with platform fees built in for eBay, Depop, Vinted, Poshmark, Mercari, Etsy and Facebook Marketplace, with net-profit, margin and ROI per item and a live dashboard.

Works with the free tier of ChatGPT, Claude or Gemini. One-time price, lifetime updates.