The Sweet Side Hustle She Started ‘On a Whim’ Turned Into a $20,000-a-Month Income Stream: ‘It’s Simple, It’s Affordable and It’s Fun’ by TopTechTrends It was the summer of 2015 when Katherine O’Brien, founder of Cream Cruiser and Bike Business University, decided to launch her own business. About The Author TopTechTrends See author's posts