Rolling a Rug
We bought this rug from Target when we started implementing Montessori right before M's 3rd birthday. I showed M how to roll the rug and store it in the same place in her playroom when she is finished with it. Even though she usually works by herself, I have found that using the rug helps to contain her materials to one area, and encourages her to clean up before moving on to something new.
See more Practical Life activities here.