Ah, one of my long-time El Dorados: the one repository that will hold them all...
I'm almost defaulting these days to gmail holding most of my stuff. (God forbid they should lock me out of my email one day, or a server goes down, or...) I have my home pc, a work pc, and will soon have a laptop. I'm not interested in synchronizing bookmarks, desktops, etc. among them. (And I can't at work, because of a locked-down PC.) So gmail/delicious/google bookmarks tend to be the hubs of my information empire. (I use google bookmarks for short-term projects.) I can also email Google Reader posts to my gmail account if I want to store them for reference (and really, how often do we go back to refer to these things? But that's another post...)
I'm wondering if a USB drive based solution may work. (I recently ordered this (http://tinyurl.com/3aapzv
) from Amazon mainly because the price looked good, so I may use it to test this. ) (Although I have a history of forgetting to pull the thumbdrive from the PC at the end of the day and am then left without it--hence the elegance of an online solution.)
At home, I have a Notetab Pro outline file called "batf" (big-assed text file) (not an original name; got it off of one of the memes circulating last year on keeping your life inside one big text file). At home, this holds all the info I suck up regarding GTD, my web site settings, logs of troubleshooting the home network, etc. Most of this I have no need to access at work. It looks and operates somewhat like Treepad and the other tree-based info organizers. But it's plain-text, all in one file, so could be retrievable and viewable in other apps.
I think we're really talking about a logbook (see my delicious links on this topic: http://del.icio.us/brownstudy/logbook
, especially the c2.com link to "Electronic Logbook") and so categorizing in that case isn't an issue. You really just need to enter a date/time (because natural memory may help you triangulate on when you logged the information) and then the info. The advantage of electronic being you can search on it later. I used a PBWiki for this for awhile, but am thinking of installing an open-source wiki solution on my web site. (For an analog logbook, say a Moleskine or something, just leave a few pages at the end to create an index, either thematic or date-based, and so you can retireve the info a little faster when you need it.)
Google Notebook is also an excellent place to store squibs and snippets of info. That mounting pile o' stuff is out of your face until you need to search for it. But it's more seamless for web-based info than for text files, Word docs, PDFs, and such.
My fear of putting everything onto my USB is that I'd forget to back up the file then I'd lose the drive and then my empire would topple.
But then if I feel that way, I've got way bigger problems than where to store my info...