How-to
Sync iTunes on multiple computers
The Home Sharing feature in iTunes 9 makes the process a fairly simple one, so you can distribute the music and movies you've purchased from the iTunes store to up to five computers.
Erase useless files on your Mac
CleanMyMac does a good job of cleaning out files you don't need and freeing up space on your hard drive.
How to make video playlists for iTunes, iPod and iPhone
Video playlists are less common than their music counterparts. This guide will help you through the few hurdles worth knowing about.
Create Smart Playlists in iTunes
Smart Playlists can be used to quickly create genre playlists, sort out your least favourite tracks or keep your kid's insipid music from infecting your iPhone.
Convert your videos for the iPhone or iPod for free
Brian Tong shows you some free programs that can be used to take all your videos and move them to your iPhone or iPod.
Format a drive for Mac OS X and Windows
If you move a hard drive between the two operating systems, here's what you need to know.
Safely clean a glossy display
Find out how to remove smudges and dust from your glossy laptop display — safely.
Advanced iTunes: Get more from the software
Here's a collection of four tips for getting more out of the software — using multiple libraries on a single machine, the best uses for Smart Playlists, getting true CD-quality rips from your CD, and tips for getting perfect album art.
Move your iTunes library to an external hard drive
If you're an iTunes user whose appetite for music, movies and podcasts is outstripping the capacity of your computer, it might be a good time to think about offloading that library to an external hard drive.
Print your own CD cover in iTunes
Brian Tong shows you how to take your album art and make a custom CD cover in iTunes.
iPhone starter kit
Check out our picks for the most useful, informative, social and media-friendly of the bunch to get you started with your new iPhone or iPod Touch.
Learn how to play guitar in your browser (in 3D)
iPerform3D is a browser-based music learning system that shows users how to play guitar in 3D, and it works on both Macs and PCs.
Turn your iPod Touch into a phone
Apple may have a new mobile phone to compete with — one that runs on its iPod Touch.
Filter out unwanted music in iTunes
Sharing a computer and iTunes library with someone but can't stand some of their music? Here's how to filter out each other's bad stuff and live in harmony.
Apple iCal: An insider's guide
iCal is Apple's personal calendar program to help organise work and personal lives. In this guide we'll show you the basics of the calendar service, integrating it with other Mac software, syncing your calendar to mobile devices, and sharing your schedule.
Yeah recently i used a tool Stellar Wipe Mac which deletes my useless and unwanted files and makes my system more efficient and speedy.The software deletes your selected files and collects a lot of free space for usage..Just try it
http://www.macintosh-data-recovery.com/file-eraser.php 
