Comment Wiki (Score 2) 133
I use a wiki. Specifically, I use OpenWikiNG, http://sourceforge.net/projects/openwiki-ng/ , however, any wiki software would work. My reason for using OpenWikiNG is that I largely use windows and the software is ASP based and can work with a simple Access database. The way I have it setup, and in hindsight, I would do this differently now, is that I use the personal web server that comes with Windows on my personal home desktop. With the access database, I don't have to worry about some heavy database engine. Since I'm the only user, this has been a very stable setup and trivially easy to migrate to a new machine when needed. Another reason I use OpenWikiNG is that it's open source, very simple, and somewhat easy to hack. It works for me, and that's all I care about.
With wake on LAN capability, I can VPN into my home network and wake my machine if I need remote access. And since this is a wiki, I don't have to install any software on any other device. All I need is a web browser.
In terms of usage, I have my wiki start page as my browser's home page. I have links to site I visit often, some RSS feeds, my daily schedule, even some emails and phone numbers. I use the wiki as sort of a second brain. I have pages where I put my ideas, pages where I put things that are important, things I might need, and all sorts of other resources from computers to food. My personal wiki is a much better bookmarking system than what any browser could ever come up with. I can easily annotate information that I add, and most importantly, I can search.
To give the benefit of my hindsight, I would probably want to use a dedicated LAMP server on my home network. And I would consider something with better file and image management, as OpenWikiNG really sucks at that. To really find something that would suit one's personal taste, I suggest looking at http://www.wikimatrix.org/ to compare them. I have a lot of stuff in my personal wiki, and converting it to some other format really seems like a hassle. So, if you do this, pick a wiki you're comfortable with. The more time you spend using it, the more you lock yourself in.