When my mom sold the house I grew up in, she sold everything. For months leading up to her move, she kept telling me about all the sales she was having. One day, she mentioned she’d sold 20 empty pickle jars for $20. I couldn’t believe it! I thought, “If she can sell used pickle jars for $20, I definitely need to start selling my stuff too.” That moment marked the start of my journey into selling unwanted items. I began by listing things on Craigslist but eventually switched to Facebook Marketplace after a friend recommended it. My mom...