Back in 2000, I enrolled in a combined Arts-Science degree, with plans to major in philosophy and computer science. However, at the end of my first year, I dropped the Arts part of my degree and just stuck with computer science. I regret doing that, although given my personal situation at the time I felt the need to get a well-paying professional job as soon as I could, and CS is obviously a much easier route to that than philosophy. Maybe one of these days I'll go back to university and get my philosophy major.