Your paid launcher isn't set as default after reboot? Fix it with this loader.
THIS IS NOT A LAUNCHER. IF YOU DON'T NEED THIS UTILITY, DON'T DOWNLOAD IT!

There is a bug in Android 4.1, 4.1.1 and 4.1.2 (Jelly Bean), which causes the system to not remember paid launcher as a default launcher after a reboot of a device. This affects for example ADWLauncher EX, SPB Shell 3D, TSG Shell, Next Launcher, Action Launcher Pro and BIG Launcher. This free loader allows you to fix this issue.

How to use Jelly Bean Launcher Loader:
1) Download it and run it.
2) Click the top button (Select default launcher) and choose your launcher.
3) Press the HOME button, choose 'Jelly Bean Launcher Loader' and click ALWAYS.

That's it. Now whenever you press the HOME button, your launcher will show, even after a reboot.

If you want to change the launcher in the future, reinstall this loader to configure it again.