I hate to shoot holes in your plan, but I think you are only asking for more problems by dividing up the alphabet. Not everyone files by the same keyword and odds are they will find a way to continue to dump it on you. Your boss needs to put his foot down and require that they keep their files up to date. Are they so busy they can't get to it? If so, then maybe hiring a part time file clerk is in order.
This is a topic I am going to be discussing with my boss on Friday. I do the filing for paid invoices but I have nothing to do with AP/AR functions besides this. I am also being asked to take on other duties that are AP/AR related. I have no problem with this if it involves my learning something new, but if I am being asked to do it just because my co-worker won't or doesn't want to then we have a huge problem that needs to be resolved.
Discuss with your boss how much of your time is being taken up by doing their job for them and ask him to assign areas within your group that each is responsible for maintaining files. ie: AP/AR, contracts, HR, etc.
Good luck.
Michelle
