10 worst businesses you can start in 2025. 10. Cleaning businesses, including pressure washing and window cleaning 9. Real estate investing 8. Travel agencies 7. Tax-preparation businesses 6. Self-storage units 5. Locksmith services 4. Pest control 3. New car dealerships 2. Laundromats 1. A three-way tie: Restaurants, trucking businesses, and last-mile delivery services What do you think? Share your opinion in the comments—what doesn’t deserve to be on this list? And what’s missing? Let’s get th