Parents are always looking for tools and activities to keep their kids entertained and engaged. Printable activity guides for different age groups, home-school lesson plans or even virtual nature walks or story time could all be viable startup ideas.

A grocery delivery startup can come with minimal setup costs — you only need a vehicle and a cell phone to get started. Help older people or others who are too busy to shop by offering this community-friendly service. You can even approach grocery stores in your area to see if they're willing to partner with you to get the service off the ground.