Tasker $2.99

Total Automation, from settings to SMS. ADC2 finalist!
* Triggers: App, Time, Day, Location, Hard/Soft State, Event, Shortcut, Widget, Timer, Plugins
* Actions: 200+ built-in, plugin support
* Tasks: loops, variables, conditions
* Scenes: design your own screen overlays
* App Creation: create your own standalone apps to share or sell! (Android 2.3+)

Trial: http://tasker.dinglisch.net/dl
Starter Guides: http://tasker.dinglisch.net/guides.html
Queries, Problems: see Menu / Info / Support in-app

It's not possible to fix problems reported via Play Store Comments...

****** Actions By Category ******

[not all actions available on all devices]

* ALERT: Flash, Notify LED/Sound/Vibrate, Cancel Notification, Popup Timed/WithTaskIcons/Names, Torch, Vibrate, Vibrate Pattern
* APP: Calendar Insert, Go Home, Kill App, Load App, Open Map (/StreetView/Nav)
* AUDIO: Alarm/Call/DTMF/Media/Notif./Ringer/System Volume, Haptic Feedback Toggle, Mic Mute, Notification Pulse, Notification(<4.1)/Ringer Vibrate (<4.2 or root), Silent Mode, Speakerphone, Sound Effects toggle
* DIALOG: 28 System Settings dialogs
* DISPLAY: Auto-Brightness, Close System Dialogs, Keyguard, Keyguard Pattern, Display Brightness, Display Off Timeout, Display Rotation, Set Wallpaper, Stay On, Status Bar (expand/collapse)
* FILE: Browse Files, Directory Create/Delete/Move, File Copy/Delete/Move/Open, Write To File, Read Line, Read Paragraph, Zip/Unzip File
* INPUT: Button, Dpad, Type (root only), Input Method Select, Soft Keyboard (show)
* MEDIA: Media Button Events (grab), Media Player Control, Music File/Dir, Play/Forward/Back/Stop, Photo/Series/TimeSeries, Record Audio, Record Audio Stop, Ringtone, Scan Card
* MISC: (Broadcast) Action Intent, Component Intent, Get Location, GPS Status (<2.3 or Cyanogen/submod), Run (ASE) Script, Say, Say To File, Shut Up, Search For, Set Clipboard, Reboot (root only), Set CPU (root only) Set Timezone
* NETWORK: Airplane Mode (<4.1 or root), Autosync, Bluetooth, Bluetooth ID, Compose Email, Browse URL, HTTP GET, HTTP POST, Mobile Data (on/off), Mobile Data 2G/3G (Cyanogen only), USB Tether, WiFi (set/toggle), Wifi Disconnect/Reassociate/Reconnect, Wifi Sleep, Wifi Tether, Wimax (set/toggle)
* PHONE: Call, Call Log, Call Block/Divert/Revert, Compose MMS/SMS (Templated), Contacts, End Call, Radio, Send SMS, Send Data SMS, Silence Ringer, Take Call
* TASKER: Change Icon Set, If, End If, Goto Action, Perform Task, Profile Toggle, Query Action, Set Widget Icon, Set Widget Label, Stop, Wait, Wait Until
* VARIABLES: Set, Clear, Inc, Dec, Query, Randomize, Split, Join, List
* ZOOM: Element Position, Size, State, Visibility, Text Size, Text, Image, Text Colour, Image Alpha
* 3RD PARTY: Android Notifier, Astrid, BeyondPod, JuiceDefender Data/Toggle, Gentle Alarm, NewsRob, OfficeTalk, SleepBot, SMS Backup+, TeslaLED, WidgetLocker

****** States ******

Airplane Mode, Bluetooth Connected, Calendar Entry, Docked (Any/Desk/Car), Headset Plugged (Any/Mic/No Mic), Incoming Call, Keyboard Out, Light Level, Media Button, Missed Call, Mobile Network (Any/2G/3G), Orientation (Face Up etc), Power Any/AC/USB, Proximity Sensor, Signal Strength, Unread Text, Variable Value, Wifi Network, Wifi Near

****** Events ******

Alarm Clock, Alarm Done, Date Set, Time/Date Set, Timezone Set, Display: Off/On/Unlocked, File Closed/Deleted/Modified/Moved/Opened/Attributes Changed, Camera Button, Search Button Long-Press, Card Mounted/Removed/Unmounted, Gesture,Missed Call, Phone Idle/Offhook/Ringing, Received Text, SMS Send Success/Failure, Battery Changed/Full/Low/Overheating, Device Boot, Device Shutdown, Device Storage Low, Locale Changed, New/Removed/Updated Package, Wallpaper Changed, Button Gadget Clicked, New Window, Notification, Notification Clicked, Zoom Click, Variable Cleared/Set, Email Received (K9), Gentle Alarm, Kaloer Clock, OpenWatch, Reddit Notify, Screebl, Widget Locker (Locked,Unlocked,Hidden)