After washing the exterior of your car, avoid letting it dry naturally as this can leave streaks on the surface. Use a soft towel to absorb as much water as possible. Don't use paper towels as the material could scratch the paint. You can usually get products to clean your car at Bob Tedford Chevrolet that can remove streaks that you see.
If you see swirl marks on your car after it's washed, use polish to remove them before waxing. This will give your car a smooth appearance before applying wax to make it shine. When you're cleaning your car, make sure your rinse your sponge or cloth on a regular basis to prevent spreading dirt.
The trim should be cleaned before the rest of your car. When you clean the trim, dirt and debris could run down the sides of your vehicle, defeating the purpose of cleaning beforehand. While in Farmersville, you can get tape or cloth to put along the trim after it's cleaned.