The tree cover here is the whole appeal and it is also the problem. The Woodlands was built around its pines, and a car parked under them collects sap, pollen and bird droppings faster than the same car three miles up the freeway. Sap hardens onto clear coat within days.
It is a commuter corridor. Cars run I-45 south into the city and sit in a lot all day, so they pick up the highway contamination on the way in and bake it on while parked. Twice a year that includes lovebug season, and lovebug residue is acidic enough to etch paint permanently if it sits in direct sun.
Most homes here have a driveway and a garage, which makes this straightforward for us. We can work at the house while you are out, and the car goes back in the garage clean rather than sitting in a lot waiting for you to collect it.
The other half of the day happens in a parking lot. Town Center and the office parks along the corridor are mostly open surface parking, so the cars that leave a shaded garage in the morning spend the working day in full sun. Heat is what turns a contaminant sitting on the surface into one bonded to it, and that is the difference between a wash fixing it and not.