6 Hugely Successful Businesses Started On a Shoestring Budget

Cave Tools

Michael O’Donnell was an unsuccessful, 23-year-old entrepreneur living with his parents in Newtown, Pennsylvania. His ambition was to launch a barbecue grills and accessories company. O’Donnell launched Cave Tools with $4,000, his life savings, in 2013. Cave Tools generated $2.5 million in sales in 2017. That’s 1,120% sales growth in three years.