12 Steps to Improving Your Mac's Performance
Subject:   These "tricks" are no-informations ...
Date:   2005-07-29 00:36:23
From:   Yves
1) the number of files prsent on your hard disk will not influence your Mac performances
2) the fact of keeping things "clean" neither
3) defragmenting the filessytem will not reveal a sensible gain in disks accesses time

etc etc etc

These "tricks" are basic things they tell in "trainings" to users who will have to use Windoze ... where they are true (well most of them)