PortableApps Suite Standard
Do you find yourself frustrated when on the go, without all your applications and data? Copy the PortableApps software suite to a USB flash drive, iPod, or similar device, plug the unit into a PC, and all your apps--plus your contacts, documents, and bookmarks--are available.
The PortableApps Suite comes in two flavors, Standard and Light (1/3 the MB!) This link takes you to the vendor's site, where you can choose the suite that suits your needs.
Note: This suite is donationware. It is free to try, but the authors accept and encourage donations towards further development.