本周，你最感兴趣的是如何使用googlewave、替代任务管理器、健忘集的提醒工具，以及一些漂亮的秋季主题壁纸。

• Wallpaper Roundup: Color Splashes and Cooler Days Fall is a colorful time of year and the vibrant hues of fall foliage and holidays lend well to livening up your desktop. Take a stroll through our collection of fall-themed wallpaper to find a new look for your workstation.
• Google Wave's Best Use Cases Last week we asked a simple question: How will you use Google Wave? Over 600 resp***es later, we're sending Wave nominati*** to the people who had the best use cases. Here are a few.
• Five Best Windows Task Manager Alternatives The Windows Task Manager is a functional but basic tool for keeping an eye on what your computer's up to. If you want to go beyond the built-in tool and for more in depth information and control, check out these five alternatives.
• Top 10 Reminder Tools for Forgetful Minds Tweak your workflow and inboxes all you want, but your mental memory might always be the weakest link in your day-to-day life. These 10 tools take some of the workload off your brain, and prevent a few forehead slaps.
• First Glimpse at What the Chrome Browser May Look Like in Chrome OS Over the weekend someone stumbled onto a Chrome browser build for Chrome OS on Google's servers. We've seen several false-alarm looks at Chrome OS, and while it is only the browser, it provides a glimpse into the direction Google's going.
• Make Unlimited Free Calls on Your Cellphone with Google Voice Most cellphone carriers provide a feature allowing you a certain number of contacts that you can call, on any network, for free, anytime. So what happens when you team up this feature with your Google Voice number?
• Use Ping-Pong Balls to Create Diffused Party Lights If you need some cheap and novel ambient lighting for your next party, you're only a box of ping-pong balls and a string of lights away from solving your lighting worries.
• CrimeReports Maps Out Local Crimes If you want to check out a neighborhood you're planning on moving to or just want to see how things are looking in your corner of Sunnyvale, CrimeReports mashes up local police reports with a map of the area.
• Michael Pollan's 20 Food Rules to Live By Many Lifehacker readers turn to In Defense of Food author Michael Pollan's practical, no-n***ense advice when they're looking to eat better and healthier. Over at the New York Times, Pollan has pulled together 20 solid-sometimes silly-eating rules of thumb.
• Blackra1n Jailbreaks iPhone 3.1.2 Firmware Windows: Blackra1n continues in the long tradition of jailbreak apps that never say die when faced with Apple updates. It won't unlock an iPhone for carrier switching, but Blackra1n does give you third-party, unofficial apps and features on your iPhone.