I'm setting up my "mobile" office
Here's a question I get a lot after seminars:
"What are in/how do you use your plastic files?"
The plastic files are "independant" of my "digital system." So, my PDA will have sections like @Calls, @Errands, Projects, ect., while the folders hold support information.
In Box - to capture "unprocessed" items. It's the same as carrying a legal pad, or spiral notebook around
Action Support - the paper based materials to support the next actions. Here are phone lists, address lists, actual envelopes...anything to help me get my work done (the paperwork I'm going to need) while I'm away from my office
Read and Review - Simply that...articles, web printouts, etc. that I have to scan.
To Office - I use while I'm "on the road" to hold the things I get/process while I'm out that need to come back (mostly, stuff to file in my A-Z).
In addition, I carry a "Writing Support" folder. In there is the "project support" for the current article I'm working on. (Notes, ideas, printouts, interview quotes, etc.)