JuiceDefender can disable background data processing when your screen is off, turn off your smartphone's Wi-Fi when you aren't near a known network, scale down system processes during certain hours of the day, and much more. All put together, its automated adjustments can make a noticeable difference in your phone's daily stamina.
JuiceDefender is free. An plug-in called UltimateJuice adds a handful of extra options into the program; it costs $5.
4. Take websites to go with Chrome to Phone The doggy bag isn't just for restaurants anymore. With Android and Google's Chrome to Phone application, you can send Web links and other information from your computer directly to your handheld device.
Chrome to Phone doubles as an Android app and an extension for Google's Chrome browser. Once you link up both ends of the equation, you'll be able to click a button on your PC and have whatever page you're viewing pop up instantly on your Android smartphone. You can also highlight text and have it sent wirelessly to your smartphone's clipboard.
The Chrome to Phone Android app is free; the desktop browser extension is free in Google's Chrome extension gallery.
5. Share files without wires with Dropbox Forget those cumbersome email attachments: With the right app, you can share files with anyone, sans the hassle.
Dropbox offers an Android app that'll bring Web-based file sharing right into your phone. You can upload and download files directly from private directories, public directories, or folders you selectively share with specific users. (Box.net offers a similar app and service.)
The coolest thing about the Dropbox app is that it fully integrates the file-sharing experience into Android. When viewing a photo on your phone, for example, you can select the system's Share option and find a command to send the image directly to your Dropbox folder.
The service provides PC-based access, too, as well as access on other smartphone platforms. Dropbox comes with 2GB of storage for free; you can opt to buy extra memory for a set monthly fee that varies based on the amount of space you choose. The client app is free.