Wet, Loose String

Stuff moves around.  One day it's here, the next it's over there.  You never see it move.  It moves, though.

The floor shows where it was.  Time won't erase that, without some help.  It leaves an impression.

There's no dust.  Even clean places collect dust between cleanings.  Things are too clean.

Rain makes puddles.  Puddles leave residue when they dry.  Rain leaves residue.

Loose strings should be dry.