If you use Safari rather frequently on your jailbroken iPhone, iPad, or iPod Touch you may want to check out BackForwardList for Safari. The main purpose is to enhance the functionality of the back and forward buttons.
Instead of tapping to go back a page, you can hold down on the back or forward button to gain quick access to your history. I've found this useful when I want to go back to a site I was browsing a few pages back. It's much easier than just tapping on the back button multiple times.
The tweak doesn't add any shortcuts or icons to your springboard and there are no setting to configure. Just download it from Cydia and you're good to go. You can also swipe sideways within your history to delete individual items. BackForwardList for Safari is a free download from the Cydia store.
[Free - Cydia Store Link]