The 1st thing to do after upgrading to iOS7...

[pjarvi]

After upgrading to iOS7, hold the Home and Power buttons for 5 seconds to force the phone off then press the Power button to turn it back on. Here is a before and after of the settings screen for Notifications showing what was missing (I wasn't seeing Weather or Calendar in the Notification screen itself either), Lord knows what else wasn't working right until doing the reboot:

(Note the "Today View" section)

 

[GoCubsGo]

And the second thing to do is disable your control center from being accessed on the lock screen until the bug is patched.

Good call though. I've told 3 people that I know to reboot their phones since Wednesday. It isn't obvious to most.

 

[old-school]

All my apps showed up to date before a reboot. Then I had 33 app updates after a reboot.

 

[darngooddesign]

And the second thing to do is disable your control center from being accessed on the lock screen until the bug is patched.

Unless you don't leave your phone laying around for anyone to pickup.