Michelle Levin has written an article for World Trademark Review on taking your trademark practice paperless. According to Michelle, IP law, and in particular trademark prosecution, is especially well suited to a paperless workflow.  Her article provides a swift survey of the pros and cons, and suggests that while it might feel like it would be painful, there is much to recommend ditching the paper documents.  See

www.worldtrademarkreview.com/Magazine/Issue/58/Columns/Taking-your-trademark-practice-paperless (subscription).