When I started up one of the first things I did was imagine that my company (just me) was huge and tried to come up with systems to suit - it is tough if you outgrow your systems. On one general drive we have folders for:- Administration, containing everything administrative including financial, Asset Management - everything which appears in our Asset Schedule, basically, Clients - folder for each client with their likes, dislikes, contact details, non project correspondence and so on, Computing - folders for hardware, software, IT Management systems and so forth Development - folders for planning, business plans, budgets, etc Library - one place to store all those useful documents which are timeless Meetings - records of all in-house meetings Our People - (forget HR, it is so dehumanising) all about the people who actually do the work Our Suppliers - every company or person who supplies our inputs Quality - everything about our quality systems Production - rules about how we do things, analytics on production, that sort of thing, Templates - all standard documents and templates Training - all systems and records to do with Training. And then we have another drive for each (numbered) project. Most important - we use links to access files which could be in several places, we never have two copies. Thus there are a links to client projects inside the client folder. When we started a wiki we kept the same structure. I try to use the same structure in my Outlook folders. It works well, but I would love to hear about a better system! Good luck.