Gotta be a script though so I can run it nightly
Remove-Item -Path P:\Test\ -Force -Recurse -Include *[0-9][0-9][0-9][0-9]*
Remove-Item -Path P:\Test\ -Force -Recurse -Include *[0-9]*
Remove-Item -Path P:\Test\ -Force -Recurse -Include *[0-9][0-9]*
Remove-Item -Path P:\Test\ -Force -Recurse -Include *[0-9][0-9][0-9]*
Remove-Item -Path P:\Test\ -Force -Recurse -Include *[0-9]*