Not sure if this is common knowledge or not, but I didn’t know it so I’ll pass it on.
If, like me, you use a Mac laptop (PowerBook 17″ in my case) you probably won’t leave it turned on all the time. Eventually this will result in things beginning to slow down, especially when booting up and shutting down. This is partly due to the fact that all of the automated maintenance tasks run between 3 an 5 o’clock in the morning. So here are two quick tips:
1. Open the Disk Utility in the Utilities directory and select your hard disk from the menu on the left. Then, on the First Aid tab, click the “Repair Disk Permissions” button. Once this has run things will speed up quite a lot.
2. Download MacJanitor, a utility written by Brian Hill which allows you to run all of the automated tasks manually. It takes a few minutes but is well worth doing every few weeks.