I decided to try the experiment of putting Xubuntu on a 4gig USB stick. The reason for this being I was running out of space on my hard disk.
To do this, you have to download “Xubuntu 12.04 Alternate Install”. This gives you a non-graphical installer which will fit Xubuntu onto a smaller 4gig partition.
You have to chose “guided use the whole partition.” You know which disk is which because it tells you what the space is. If it is only 4gig, then it has to be the USB stick and not the HD in the main part of the machine.
You have to be a bit careful with this parititioner because it allows you to wipe out your Windows installation.
If you are on a wireless connection using your laptop, you need to make a note of your wireless access name and the password.
Then you need to set the startup devices so that the USB stick is the first boot device.
When the USB stick is not in the machine, thn it will boot into Windows.
When booting from the USB stick, the GRUB menu gives you the option to boot back into windows, which is cool.