Most people assume passive income means building something new. Established businesses with 20 years of loyal customers and proven cash flow are listed for sale right now — priced by owners who simply want out.

Golf simulators are the newest party trick. The solopreneur delivers, sets up in 45 minutes, runs the experience, and breaks down after. No venue needed. No lease. No overhead.

Every construction site, outdoor event, public festival, and park system needs portable sanitation. It is a non-negotiable. The problem is finding a provider who is reliable, responsive, and available.