I found this app called "Power Toggles". Its an app that gives you access to most of the phone options such as WiFi, Bluetooth, Screen Brightness, etc. straight from your drop-down Notification Panel, and the best part is that you can launch apps from there too! You can customize the toggles in anyway you want, and the number of toggles they offer are just overwhelming. Amazing right?
Here's the link:
Do check it out. And do post other apps that you feel is a must have app.