Prevent a Media Directory from Appearing in Android Gallery

The Gallery application on Android devices is a bit aggressive about scanning and adding directories. Have a directory you want to keep private? Use this simple trick to keep it out of the Gallery app.
If you want to use the Gallery app to show people pictures of your kid/dog/home remodeling project and not your girlfriend’s chest/drinking exploits/night at the club then this tip is for you. By default Android’s Gallery

BatteryCalibration Recalibrates Your Android Phone’s Battery

If your Android phone’s battery seems to have less zip in its step than it used to it may be in need of recalibration; BatteryCalibration revitalizes the battery on rooted Android phones.
Download the app, run it, and let your battery reach a full charge. The application kills your old battery stats