Power Toggles is a highly customizable android widget which allots lots of tinkering options. Power Toggles is an app to help you easily change settings, and it's not only free but also ad-free. It's nicely designed and widely customizable. And it does stuff you need to do all the time, such as toggling on (or off) Wi-Fi, mobile data, Bluetooth, or location services. It's even a flashlight.Power Toggles supports homescreen widgets and notification widget. Also supports expandable notification widget on Jelly Beans and above.
[Top ten] Indispensable
The widget does its job and the additional customizability features are a nice bonus. You can change skins and add buttons along with other details to fit your needs. Unfortunately, the widget cannot directly control mobile data , but that is presumably the fault of Android as this behavior also occurs with similar apps, so I would let that go.
Tips for using the product
I really like the accessibility this app provides. Highly configurable, too. I regularly want to turn off and on my Wi-Fi and airplane mode, and mute or unmute my phone. This lets me do that. Also the flashlight is right there, and I have a shortcut to my favorite timer app. I have similar buttons on the notification toggle bar plus a shortcut to call a best friend. I'd hate to be without this app. I'm on jellybean (android 4.1) and it works perfectly.