This is quite a handy file synchronization application/service I've been using lately: DropBox (www.getdropbox.com)

Put simply: you install the software and you get a My Dropbox folder on you computer. Everything you put into that folder will be synchronized on every computer you have installed Dropbox on.

So instead of e-mailing your stuff from work to your home/personal account, or copying files to your USB-stick (which I way too often tend to forget in computers) you just save your files in the Dropbox folder.

Also, if you happen to use a computer without installed Dropbox you can get your hands on your files through a web browser.

The free Dropbox service allows an account with 2 GB file space.

You can also share your dropbox with for example clients or co-workers.