An Internet refrigerator and a method of operating the Internet refrigerator are disclosed. The systems may be configured to monitor the movement of each subject in a network of subjects. A user can be associated with a respective user profile which includes information with respect to the user’s communication preferences. The second layer communicates a direction and range to the first layer. The packaging materials may include a substratum with a printed pattern disposed thereon that provides a grass-like appearance, andor the packaging materials may include a plurality of individual strips, strands, or units of material bondably connected thereto. The left and right adhesive pieces are provided with tabs for attachmentdetachment tofrom the adhesive part, and the tabs are provided with tab identification marks for identification from neighboring members.