本周我们帮助读者准备升级到Snow Leopard，提供了10个让MacGyver引以为豪的技巧，并向您展示了如何加快臃肿的Firefox安装速度。

• Top 10 Tricks MacGyver Would Be Proud Of When they draw up the Complete History of Lifehacking, Angus MacGyver will certainly merit a chapter. We pay tribute to the creative can-do secret agent this week with 10 tricks that make extraordinary use of truly common objects.
• Prep Your Mac for Snow Leopard An operating system update like this Friday's release of Mac OS X Snow Leopard is a perfect time to clean up your computer and start fresh. Let's prepare your Mac for this weekend's 10.6 upgrade.
• Make Firefox Faster by Vacuuming Your Database Firefox tip: Firefox 3.0's Awesome Bar added all kinds of features to the 'fox, but unfortunately it's also created some performance issues—for example, by upping the default history time, leading to larger, fragmented databases.
• How Fast is Your Internet Connection? DSL and other high-speed internet services feel like dial-up more often than they should. According to a new study, the U.S. ranks 28th in terms of fastest broadband speeds behind Japan, Sweden, Holland, and other industrialized nati***.
• Lock a Deadbolt from Outside the Door (Without a Key) Ever needed to lock the deadbolt behind you but didn't have a key to the door? Admittedly, this isn't a problem you'll get into every day, but Instructables user Hextor has a clever solution should you ever find yourself in this situation.
• Complete Guide to Making Outlook Faster (Than Molasses) If you are stuck using Microsoft Outlook to send those TPS reports at work, you've already experienced just how painfully slow it can get—but with a few quick tips you can make it usable again.
• Grab Mac OS X Snow Leopard's Wallpaper for Your Desktop Classic art, serene natural landscapes, remixed Mac images, and actual snow leopards—the wallpapers from Mac OS X 10.6, a.k.a. Snow Leopard, are in the wild, and you can grab them at full resolution for your own desktop.
• The Definitive Guide to Backing Up and Ditching Your Discs Whether you're moving, short on cash, or running out of storage space, you've got plenty of reas*** to ditch your physical media. Hard drives are cheap; here are our recommended methods of saving, selling, and trading your CDs, DVDs, and video games.
• Tech Support Cheat Sheet Reveals the Secrets of Troubleshooting If you read Lifehacker, chances are you've been designated as your family's de facto IT person, and you've probably spent more than your fair share of hours troubleshooting applicati*** you know no better than the person asking.
• The Floating Shelves and Hidden Cables Workspace Today's featured workspace is a great example of how, with some careful shopping and thoughtful layout, you can create an uncluttered and tidy workspace without a huge budget.Lifehacker reader msweston took some basic building blocks from IKEA and assembled them into a sleek workspace.
• Five Features We Want to See in Firefox It's no secret that Firefox has long been our favorite browser, but much has changed recently. The browser landscape is increasingly competitive, so with that in mind, we'd like to suggest a few features and improvements we're desperate to see from Firefox.