: Check for defects, missing parts, or authenticity markers to avoid returns.
: Use "Sold" listings on eBay to see what people actually pay, not just the asking price. buy and sell for profit
: Factor in shipping costs, platform fees, and packaging materials before buying. : Check for defects, missing parts, or authenticity
: Focus on categories you know, such as electronics, vintage clothing, or collectibles. : Check for defects