A system includes: first tags configured to organize activities regarding respective physical objects, each of the first tags including at least a first processor, a first memory, a sensor, an input device, an output device, a wireless communication component, and a first activity component operated using the first processor and the first memory to adapt a behavior of the respective first tag; and a processing device configured to receive first wireless signals from at least some of the first tags, the processing device including a second processor, a second memory, and a second activity component operated using the second processor and the second memory to determine at least presence, proximity, and movement of the first tags based on the first wireless signals.