The present invention is a portable storage device containing proprietary software that protects personal identifiable information by redirecting cached data generated from Internet browsing and computer activities such as: history, cookies, favorites, emails, and passwords, from a computer hard drive onto the removable storage device. The present invention also incorporates a Web-based marketing and advertising communication application, to offer a marketing tool that allows instantaneous customization of advertisements based on a computer user's preferences. The present invention also allows use of the portable storage device while shopping by coupling a radio frequency identification chip with the portable storage device, and installing transceivers in stores for identifying the device and its user.