Right now, Amazon has a 50% off deal on the Buyplus Car Wash Brush. You can grab this versatile and highly-rated brush for just $35, that will help you clean every crevice and hard to reach area ...

Car wash brushes are obviously out of the equation, as the primary purpose of a brush is to agitate the surface using friction. Moreover, using a sponge to wash your car is never a good idea.

You also get a handheld brush that’s perfect for scrubbing the interior of your car, as well as a car wash mop that won’t scratch your paint. Reusable microfiber windshield cleaner tool: $4.97 ...

But I would say on average you'd be spending $8–$10 per wash at a car wash using god knows what on your paint," said Mr Luke. The good news is that it's typically not the end of the world.