Getty Images/Andrew Kamphey This story is available exclusively to Insider subscribers. Become an Insider and start reading now. Andrew Kamphey, 37, used spreadsheets to help manage influencer campaigns for a Los Angeles talent agency. In April 2020, he set up Better Sheets, with which he teaches subscribers how to make better Google Sheets. He tells Chris Stokel-Walker how this unlikely side hustle earned him $34,000 in a year. After graduating from college with a theater degree in 2008, I went to work on cruise ships. Part of the job was getting information from every department on the ship to then broadcast to the 4,000 passengers.