With the rising popularity of using a USB stick to store your data, files and applications, there's no reason why you couldn't install the majority of your key applications on your USB stick and then simply connect this to the computer where you want to produce your work. The only problem is that sticky notes, where you'll place your thoughts, 'to do' list and forthcoming tasks, tend to be posted to your desktop.
Hott Notes Portable 4.1 is a version of the sticky notes application that enables you to copy the applciation to a USB stick and then store your notes on the stick. When you open your notes, they'll open on the host computer, but will keep any information on your USB stick, safeguarding your personal data.
Hott Notes Portable 4.1 link.
21 Feb 2008