If you want the simple hacks like disc update blocking,... you can use starfall
If you wanna go a bit more advanced, you can go for preloader.
Preloader has as a bonus that it can be loaded even if you bricked (in most cases) and you can choose the hacks you want. On top of that it has some cool extra functions (like autobooting a certain app).
Also, preloader works on 4.0 and starfall doesn't.
If you want to use preloader, I advise uninstalling starfalls hacks first