Want to spice up your spreadsheets? Take this quick - and free - tutorial from CNET.COM

Lifehacker, the software and productivity guide, is a blog that covers tips and tricks for streamlining your life with computers (and sometimes without). Updated several times daily, Lifehacker points out software downloads, web sites, do-it-yourself projects, how-to's, tutorials, shortcuts and tips for going beyond the default settings and getting things done in the most clever, unexpected and efficient ways. Think of Lifehacker as self-help for geeks.

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Change your Desktop Wallpaper

Customize your computer with your own choice of wallpaper and colors. This quick guide shows you how.

Change your Password

Need to set, change or reset your password in Windows? This quick security tip can save your day - and your data!

Change your Screensaver

Let your computer's thoughts wander when you're away from your desk with this quick guide to choosing a screensaver.

Move your Personal Files and Settings to Another Computer

When it's time to move your old files to a new computer, this how-to guide can save you lots of time and effort..

Update Windows

From time to time, Microsoft releases patches, fixes and bug updates for its operating systems. Find out how to safely and consistently apply these updates to your system.

Update Norton Anti-Virus

More than 200 new viruses come out every day - so be sure your system has the latest innoculations and updates with this quick guide.

Scan your Hard Drive for Errors

A hard drive scan a week can keep the doctor away.

Defragment your Hard Drive

Is your system getting sluggish? Maybe you just need to rearrange the files and get them back into sequence. Here's how.

Clean Up your Hard Drive

Old documents, temporary files and online fragments can wreak havoc with your performance. Clean it up with this quick how-to.

Windows Tips and Tricks

Windows Control Panel Basics

Use some basic tools in Windows 9x/XP Control Panel

Manage Your Mouse
Use some basic tools in Windows 9x/XP Control Panel

PDA Tips and Tricks

• Manage PALM OS Preferences
• Palm OS Main Menu Features
• Address Book: Add a Contact
• Use Global Find
• Use Memo Pad
• Use To Do List
• Use Expense Tracker
• Synchronize with Outlook - from PalmOne.com

Outlook Express Tips and Tricks

• Add Contact to Address Book
• Create Mailing Groups
• Block Senders and SPAM
• Create Folders
• Delete Email Messages
• Activate Sent Items Folder Tracking
• Create a Signature File
• Add an Attachment to a Message
• Request a Receipt from Recipient

Internet Explorer Tips and Tricks

• Using AutoComplete
• Clearing your Cache
• Creating Favorites
• Setting Privacy Levels
• Search Tip: Address Bar Tricks