If you haven’t gotten Dropbox, get it now. Dropbox is a backup tool that lets you sync your files between multiple computers. You simply install the software on all computers you want to sync your files on. Then simply drag and drop your files into a folder that Dropbox software creates on your desktop and voila the files are now also on your other computers. No more need for a usb stick.
Need another reason to get it? Consider this situation, all you computers crash (days, months, years after installing Dropbox) and you loose all your work, all you have to do is download Dropbox again on your new operating system and the files are there again just like before. Visit Dropbox here and get 2GB free plus bonus 250mb for total of 2.25GB free.
Get a sense of safety by using one of my new favorites programs, Dropbox.