Tidy up
Definition 1 of 2
Pro Tip 1/3Not Just Cleaning
Tidying up involves organizing, not necessarily cleaning with soap or water. 
I'll tidy up the books, but I won't have time to dust the shelves.
Pro Tip 2/3Personal Spaces
Often used for personal areas like your room, not public spaces like a park. 
I need to tidy up my desk before my study group comes over.
Pro Tip 3/3After Activities
Usually done after some activity that has caused disarray or mess. 
Let's tidy up the craft table now that we've finished our project.