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)