Copying a file a 2nd time and pasting it into the same desitnation folder results in an error message that is not meaninful. The error message should tell the user why they are being denied the action or ask for confirmation and allow them to it. Something like, "A copy or <filename> already exists in this location. Are you sure want to create another copy?" We could name it "copy2 or <filename>" or something like that.