Recently, there are many research for tangible objects which enables to support users' everyday life. Due to the high price of each sensor-attached devices themselves, we hesitate to attach such devices to any kinds of cheaper objects. To give an actual example, documents using at a weekly meeting is not worth to attach sensor-embedded wireless device which costs more than 15$. Even worth, dry cell batteries of sensor-embedded devices should despoil the earth environment to no small extent. Therefore, the low-priced system to support users' daily life without battery is needed. To satisfy above needs, we will propose a novel hardware platform, using inexpensive RFID tags and flexible cloth, which can detect physical desktop objects, called Smart-Furoshiki. This paper describes details of Smart-Furoshiki and its applications.