So periodically during the day, especially if my wife has been online for any length of time, I'll delete the Sandboxie sandbox ("Delete Contents" feature in the DefaultBox). Then a CCleaner run would not find any files to clean unless CCleaner was run sandboxed, then it would always delete 1.72mb. Since the install of Ay, the sanboxed run is always just .19mb. For some reason now, almost all of the Sandboxed files are deleted from the "Delete Contents" option. Very interesting!