Sweep
From Pyropopedia
Sweep transitive verb - to brush away dirt or litter
For the purposes of Leaving No Trace, and Site Sign-off in particular, the camp sweep or "mooping" is the periodic cleaning of every stray bit of MOOP. We endeavor to leave the grounds cleaner than when we arrived.
You will notice this when you arrive and begin making camp. Other folks have used the grounds before and can sometimes leave behind some surprising MOOP. Let's not be like them.
The secret to LNT is to periodically look down and pick up the MOOP. It's always more fun with more people helping while continuing a conversation.
Sweep when you visit other camps.
Sweep when you get up and are most rested.
From time to time, line up arms-length apart and walk a line picking everything up that doesn't belong. Make sure to do this when your camp is packing up to go.
And the end of the festivities, when we are at our most tired, there will be very little work to do if it's been a routine.