Install a personal firewall. This software should also be regularly updated and maintained.
At this place, I have a small trick for all notebook users. If you always want to have your current e-mails, contacts, etc. with you, you know how difficult it is to get all changes transferred automatically. I just found a program which does that job for me. It is called Easy2Sync for Outlook and synchronizes Outlook objects between computers. Exactly what you need as a notebook owner. There is also a free demo version. Furthermore the program can synchronize Exchange servers, create rotating backups.
If you always want to have your current data with you, you know how difficult it is to get all changes transferred automatically. I just found a program which does that job for me. It is called Easy2Sync for Files and synchronizes files between computers. Exactly what you need as a notebook owner. There is also a free demo version. Furthermore the program can synchronize FTP servers, create rotating backups.