Manually run Mac OS X system maintenance tasks

Wow.  I just found out from an article in the NY Times that if you shut your Mac down at night the routine system maintenance tasks never get done because they are scheduled to run from 3:15 to 5:30 am!  Here is how to run all of them manually, according to the Apple website:

1. Open Terminal (/Applications/Utilities).
2. Type: sudo periodic daily weekly monthly
   
3. Press Return.
4. Enter your Admin password when prompted, then press Return.
5. Quit Terminal when the task is complete.

You can run just daily leaving off weekly and monthly.