One common cause of this is the need to work with data that has been aggregated to different levels of detail.
These questions are often simple to ask, but hard to answer.
A clay bar can be used to remove stubborn bonded contaminants.
It will remove everything off the surface of your vehicle including wax and will restore smoothness to the paint.
Just run your hand over a washed vehicle, and if you can feel little bumps, then you need to go a step further with cleaning your car.
For example, using a chrome wheel cleaner which is extremely acidic on an aluminum wheel can ruin it.
Also invest in premium microfiber clothes and keep separate piles for those used on your paint, wheels, and windows.
We call this experience flow—a state of joyful immersion in a task.
If you care about your car's exterior, you'll avoid those quickie car washes with the big brushes that can do more harm than good and do a DIY car wash that will achieve the best results.