1. Adjust how your phone acts by using Locale. The app lets you set custom profiles for practically any circumstance--having your ringer shift to silent when you're at work, for example, or making your screen glow brighter at night.
2. Take full advantage of your phone's LED by installing Missed Call, which configures your phone's light to flash specific colors when calls from certain people slip by.
3. Edit Android's custom dictionary to include your name and other proper nouns. That way, they'll pop up in the auto-complete list as you type. Look under Language and keyboard settings in System Settings to get started.
4. If you try an Android app and decide that you don't like it, return it. The Android Market will give you a full refund for up to 24 hours after any purchase, provided that you haven't tried to return the same app before.
