You're probably still not quite over the emotional letdown of not winning the Powerball. Well, good news! There are tons of contests online you can enter. With a dummy social media account, you can enter all of them without annoying your friends.

Our final Upgrade Your Life contest winner comes from Duane E, who came up with a neat way to develop an AutoHotKey script for searching multiple sites in Firefox with a selected keyword from any applications. Details on how to implement it in Duane's own words after the jump.

Our second Upgrade Your Life contest winner comes from Shane P, who went slightly overboard and submitted his entire site filled with tips, techwhimsy.com. Of these, the one that really caught our interest was the in-depth guide to installing popular blogging engine Movable Type on your local machine (handy for development and testing on the go). Check it out for a Flash-based tutorial covering all you need to know.How to install Movable Type 4 on your local machine

Our first Upgrade Your Life contest winner comes from Jack M, who submitted a simple but very useful trick: adding Gmail to the search bar in Firefox. Now, if you want to compose an email, you can do it simply by typing the email address into the search bar and hitting return (or clicking the search icon). The plug-in also works in Gnome-do, which is good news for Linux users. Check after the jump for instructions on installing the plug-in.

Thanks to everyone who entered our Upgrade Your Life competition and submitted tips for a chance to win an autographed copy of the Upgrade Your Life book by Lifehacker supremo Gina Trapani. We've sorted through the winners and picked out three winners, whose tips will be published on the site this week. Keep your eyes peeled for them!

I'm happy to announce that  thanks to the generosity of uber-Lifehacker Gina Trapani, we have a pile of autographed copies of her new book to give away to Lifehacker AU readers! Gina's latest Lifehacker book, Upgrade Your Life, is full of lifehacking tips, tricks and tools, and we really want to give you a copy!  Send us your best life hack, organisational strategy, computer tip, or DIY project and earn a chance to have one of these books signed and shipped to your door.

We're especially keen to see entries which are supported by screenshots or video illustrating your hack - so feel free to get creative! Email us your submission to [email protected] with the subject heading  "Upgrade Your Life Competition" and over the next couple of weeks, we'll feature the top three hacks here on the site, and give the winners an autographed copy of the book.  Get more details after the jump.

If you've got 5-10 minutes to spare this week, you can earn a chance to win a $300 American Express gift card from our pals at Lifehacker US: all you have to do is fill out this (detailed, multi-screen) survey, and enter your email address at the final screen so we can notify you if you win. Standard contest rules apply, and the deadline for submission is Wednesday, April 23rd. Questions? Hit up the little men behind the survey curtain at [email protected] Thanks and good luck!

Here's our final winner in the reader contest to win an autographed copy of our new book, Upgrade Your Life. Thanks to everyone who submitted! Reader Martin is determined to not let the exercise bike next to his computer desk just sit there and gather dust. Instead, he wants to cycle while he surfs, and decided to start building his "Nerdcycle" by mounting an extra monitor to the stationary bike. Martin writes in:

Readers are submitting their best life hack for a chance to win an autographed copy of our new book, Upgrade Your Life. Here's our latest winner. Reader David says that staring at the glowing box all day long is hard on his peepers, so he takes matters into his own hands. He writes in:

Readers are submitting their best life hack for a chance to win an autographed copy of our new book, Upgrade Your Life. Here's our latest winner. Reader Zalary put some HTML skills to work to turn the Firefox sidebar into a one-stop shop of frequently used utilities. Zalary says:

Got 15 seconds to spare for a chance to win a Kindle? Our advertising team needs some sales pitch stats. Answer our three-question survey and enter an email address (so we can contact you if you win!) for a chance to win a Kindle, which retails for $399. Standard contest rules apply, deadline for entry is Monday 5PM EST, and we won't do anything stupid with your email addy. Three questions—Now go!

The results are in from yesterday's Coolest Cubicle showdown, and the winner is... Mark MacAskill's Cubes of War cubicle! Big congrats and $500 in Amazon bucks go to Mark, whose oh-so-cool cubicle pulled away with a commanding lead. As Mark said when he submitted his cubicle, "The war on terror is second only to the war on boredom. And my cube was definitely boring before I transformed it into a weapon of mass destruction." Hit the jump for one last peek at Mark's winning cubicle.

You've been with us for parts one, two, and three of this year's Coolest Cubicle Contest, and now the time has arrived—time for the final vote-off to determine which creative cubicle jockey will hit their commute tomorrow $500 richer (in Amazon bucks). We've got a tonne of entries to vote on, so hit the jump, peruse your options, and decide whose cubicle deserves the title of Lifehacker's Coolest Cubicle of 2008.

For the next two weeks, readers are submitting their best life hack for a chance to win an autographed copy of our new book, Upgrade Your Life. Reader Trent writes in with his photographic take on the popular pegboard gadget mount project we posted a while back. Trent says the project took:

We were impressed with part one, part two blew us away, and today we're back for an incredible third and final installment of the 2008 Coolest Cubicle Contest, with $500 at Amazon up for grabs. Today's submissions feature some over-the-top cubicles—like race tracks and bunkers—and some incredibly clever and subtle cubicle decor that anyone could pull off with a minimum of effort. Hit the jump to take a look at the last group of cubicles.

Last week we kicked off our Coolest Cubicle Contest with a bang, but we had no idea what kind of cubicles would come pouring in after you saw the first batch. This week, we're looking at everything from wood-paneled cabins to dungeons and castles and beyond. So hit the jump to see how your fellow Lifehackers are making the most of their company-issued cube-shaped corner of the world.