i'm sorry, but could you plz tell me what DYS means?

also, a portfolio?
i was told to keep all my 5 yo sons artwork for a portfolio, to help him get identified in the fine arts, but i know you are referring to this DYS...

thanks for your reply... can't wait to read what DYS means!
cc

One can never consent to creep when
one feels an impulse to soar!
~Helen Keller