Clay bar question ...
If you used the whole bar of clay, it'd be worth getting some new clay. Next time you use it (twice a year should be fine) cut the bar into halves, that should keep it lasting longer. 5 times is the maximum for clay really.
I'd recommend some Sonus Green clay, it's much better than the Meguiar's clay. Available here.
I'd recommend some Sonus Green clay, it's much better than the Meguiar's clay. Available here.

