Getting email to zero is a challenge for me. I have home PC files set up (@action, read/review, Calls, etc) and a paper based GTD system. I am able to get my in box emails processed into the appropriate folders, however, the actions, read/reveiw, and call folders never seem to get to a zero state. Any suggestions?

Additionally, now I have the paper list of calls and a home PC folder of calls, a paper list of actions and a PC list of actions resulting from my emails. I can only access the PC folders when I am in my home office. Will GTD still work in this case? What do I need to consider given this set up?