Ah, the office job. The good news is that a lot of office-y kind of jobs have a decent number of angles you can get hired from. I work with a decent number of people who had a large variety of majors, and a decent chunk who got in via work experience. They're usually looking for people who have good computer skills and know how to work/manipulate spreadsheets and stuff. Just find something that you're passionate, learn whatever skills are necessary, and I'm sure someone will hook you up!
Networking is good too. So many people I know fall ass-backwards into jobs from just people they meet, and end up starting careers there.