Here is a goal: How do I clean my car tires?

How would you accomplish this goal?

Available choices:
a). Use a window cleaner such as Windex and spray it on your tires and let sit for a few hours before using a toothbrush to scrub them.
b). Use a tire cleaner such as Armorall and spray it on your tires and let sit for a few minutes before using a stiff brush to scrub them.
b).