1. Activate the Android Power Strip

The single most important feature in Android 2.1 is its built-in power strip widget. Here, you're able to quickly disconnect all the phone's battery-destroying features, like Wi-Fi, Bluetooth and the Great Batter Killer that is GPS. Long-press on the screen and install it via the widgets category.

Android power strip

2. Android call screening

If you're a paranoid call-screener, Android is there for you. Open up the Contacts listing of the person you're currently avoiding, then select Menu > Options. From here you're able to ping all incoming calls from this person directly to voicemail. Give people the brush off with Android.

3. Set up custom caller ringtones

Alternatively, if you like talking to people, the same screen lets you allocate a specific custom ringtone to each caller stored in your Contacts directory.

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4. Add your alarm clock to your task killer

A classic mistake, this. We're constantly being told of the (debatable) importance of using a task manager to maximise Android battery life, and if you want to go down that route you're welcome. However, when killing all your tasks to save battery life, remember that your alarm clock is a task in itself - kill that and you'll wake up in a panic at 10.15am tomorrow morning.

5. Organise things into folders

While Steve Jobs may have recently made quite a big deal about letting iOS users organise things into folders, Android's been doing that for ages. Fancy a quick Home screen shortcut to your starred favourite contacts? Long-press the Home screen and make it so.

6. Rename Android folders

And, once you've done that, to customise things to perfection it's possible to rename folders. Simply open the folder, then long-press on its name in the top bar to bring up the Top Secret renaming field.

Rename folders

7. Check the date

Possibly one of the tiniest undocumented features is the date-checking facility. Press the Notification bar at the top left of the screen. It tells you what the date is. Go on, try it. It will.

8. Mount your SD card

Also accessed via the Notifications field is the "Mount" option. Many an Android newcomer has failed at this hurdle, as mounting your phone's SD card is an awkward step that needs to be taken before it'll appear as an external drive for data copying. Plug it in, mount it, then copy.

9. Set up your keyboard launch shortcuts

One of the reasons many people still love their QWERTY keyboards is Google's inclusion of the reliable old keyboard shortcut system in Android. The phone has a completely customisable collection of app launcher shortcuts, which are found under Settings > Applications > Quick Launch.

Quick launch

10. Download more Android live wallpapers

One thing that makes Android 2.1 a little more swish and exciting than the rather dull earlier versions is its support for Live Wallpapers - the animating image format that brings your Home screen to life. There's a negligible battery life hit for doing so, but in return you get a phone that looks cool. Which is what life's all about, right? Search the Android Market for Live Wallpaper - there are loads.