Starting a business with little to no investment is possible, but it requires creativity, resourcefulness, and a willingness to invest your time and skills. Here are some business ideas you can consider that don't require significant upfront capital:

1. **Freelance Services**: Offer your skills as a freelancer in areas like writing, graphic design, web development, social media management, or digital marketing. Platforms like Upwork, Fiverr, and Freelancer can help you find clients.

2. **Content Creation**: Start a blog, YouTube channel, or podcast on a topic you're passionate about. Over time, you can monetize through advertising, affiliate marketing, or sponsored content.

3. **Dropshipping**: Create an online store and partner with suppliers to sell their products. You only purchase items when you make a sale, eliminating the need for inventory.

4. **Print on Demand**: Design and sell custom T-shirts, mugs, posters, or other merchandise using print-on-demand services like Printful or Printify.

5. **Consulting or Coaching**: Offer consulting or coaching services based on your expertise, whether it's business, fitness, career development, or personal finance.

6. **Virtual Assistance**: Provide administrative support, customer service, or social media management services remotely for businesses or entrepreneurs.

7. **Online Courses or Ebooks**: Share your knowledge by creating and selling online courses or ebooks on platforms like Udemy or Amazon Kindle Direct Publishing.

8. **Handmade Crafts**:

Sell handmade crafts or artwork on platforms like Etsy. Consider upcycling or using recycled materials for eco-friendly products.

9. **Online Surveys and Market Research**:

Participate in online surveys or market research studies to earn money or gift cards from companies like Swagbucks, Survey Junkie, or Amazon Mechanical Turk.

10. **Pet Sitting or Dog Walking**:

Offer pet sitting or dog walking services in your local area. You can start small and gradually expand your clientele.

11. **Event Planning**:

Plan and coordinate events, such as birthday parties, weddings, or corporate gatherings, with minimal upfront costs.

12. **Digital Products**:

Create and sell digital products like templates, printables, or design assets on platforms like Gumroad or Etsy.

13. **Blogging and Affiliate Marketing**:

Build a niche blog and monetize it through affiliate marketing. Promote products or services related to your blog's topic and earn commissions on sales.

14. **Homemade Food or Baking**:

Cook or bake homemade meals, snacks, or desserts and sell them locally or through online marketplaces like Facebook Marketplace.

15. **Tutoring or Teaching**: Offer tutoring services in subjects you excel in, or teach a language or skill online.

16. **Cleaning Services**: Start a house cleaning or office cleaning business. All you need are basic cleaning supplies and reliable transportation.

17. **Gardening and Landscaping**: Provide gardening or landscaping services to homeowners in your area.

Remember that while these business ideas require minimal financial investment, they may require a significant investment of time and effort. Additionally, it's essential to check local regulations and obtain any necessary licenses or permits for your chosen business. Over time, as your business grows, you can reinvest profits to expand and increase your revenue.