I've started to look at using tickler systems (especially the 43 folder concept).
At my office we have a lot of meetings so I keep a folder for each project. Whenever there is a meeting I grab the folder with me to make sure I have all the documents I need for that meeting. Not everything in that folder would be nessassary though. The idea with a tickler system as I see it is to put the really important stuff inside the various folders. To me this sounds like a awful lot of shuffling of papers.
How do I deal with tickler systems at work in order to make it as effective as possible?