When I was 14, bunch of my cousins and I started working at my uncle's start-up as a summer "internship." Bulk of our job was to find product images and resize

When I was 14, bunch of my cousins and I started working at my uncle's start-up as a summer "internship." Bulk of our job was to find product images and resize them in various sizes. For a while, my cousins were using photoshop to do them and at the least, each image would take a minute. I saw the repetitiveness and wrote a Visual Basic tool that would process entire directories in seconds. Their work was significantly reduced. We decided not to tell my uncle about my tool for a while so that we could all finish our work a bit early and get out to play cricket together before it got dark.