Give the rack up before you are finished with it, once a week, deliberately.

Not as a lesson. There is no lesson in it and nobody is to be told.
Only that a room finds out what it is by watching what happens
when two people want the same six feet of floor,
and somebody has to go first, and it may as well be the one
who will still be here in April.

The Book of the King — Return 46:3