I have been working in media serving the accounting profession for close to 10 years now and "paperless" has been a topic for each of those 10 years. I'm not sure how long the paperless world dream was around before the last decade, but I do believe the paperless push has hit a tipping point. If you have been to any of the recent trade shows, I believe you will agree with me based on the number of vendors now actively serving the space within the Intuit Ecosystem.
Here's a great blog from FileThis ob going paperless. It reads a little more for an individual, but the process and plan can easily be converted to a professional office environment.