Now that you have jailbroken your iPhone/iPad device running iOS 7 and above (excluding 7.1), you must be wondering how to make good use of this jailbreak.
Here's a good read on the various tweaks that you can install for your jailbroken iOS 7 devices
Best Jailbreak Tweaks for iOS 7 on iPhone and iPad
Point to note if you have not jailbroken your device yet, currently there is no jailbreak method available for the latest iOS 7.1, if you are running iOS 7.0x, you can still do it. So don't upgrade to 7.1 if you want to jailbreak after reading the above article.