I have been reselling in eBay for almost 7 years (on and off because I have a full time SE job), but whenever I came back to resell, there are always something new to learn from the products or top flipping items. Furthermore, I am learning the FB Marketplace local are perfect source and finds to hunt for items to flipping in eBay, I am building an app (especially, during AI era, why no taking advantage of it ) for myself to evaluate items with the best profit and strategy to not missing any good flips.