Omni mea mecum porto.

"Omni mea mecum porto."
Everything mine carrying with me.
Latin proverb.

I recently searched the web to find solutions, which may help me to work "directly from USB-drive" at any computer.
And, Wow! I found a whole site full of applications. You can run every of these applications directly from your USB-drive! You need not to install them at all!

I already put on my USB-drive:

• portable firefox - web browser
  
• portable gaim - client for most IM systems (I use ICQ, MSN)
  
• FoxitReader - PDF file viewer (the fast one, not like AcrobatReader)
  

There are also interesting apps that I didn't try yet:

• portable thunderbird - for reading mail
  
• portable miranda - alternative IM client (ICQ, MSN)
  
• XAMPP - an all-in-one web server (Apache, mySQL, PHP and phpMyAdmin)
  

Personal wiki in a single file

For about a year I am using TiddlyWiki. Jeremy Ruston created a great wiki system based on a single HTML file. It heavily uses java script.

Another great thing in TiddlyWiki is that you can change CSS, add macros, add and change content in the same way. You just write or edit "tiddlers". Tiddler may include text notes or macro or CSS. It is pretty easy and comfortable

A whole city in a pocket

I'm playing GTA: Liberty City Stories on my PSP when travelling to/from office. It is a great game, especially if you can just take your PSP out from your pocket and then play whenever you want.