Could you tell me what products you purchase from Supercheap Auto? I'm looking for a liquid or wipes to keep my car's interior windows free from fingerprint oils and stains. Thank you
Which Cleaning Solutions for Interior Car Windows

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What about prevention? Keeping fingers off the glass is a good start. No smoking in the car. No kids having food fights. Dogs not nosing and licking the glass. No eating in the car unless you can only involve the process of eating properly.
What's going on in your car interior?
You forgot no jizz
.Starting to think that is the problem 'at hand'.
A chamois will do the job. Alternatively any glass cleaner.
Avoid ammonia based window cleaner if you have tinted windowsChamois has been a game changer, I think it was this video I saw it on
https://youtu.be/gYS2f06_CVc?feature=sharedNo chemicals just water and chamois and my windscreen is cleaner than it ever has been
Invisible Glass or Bowdens Own Naked Glass
Microfibre cloth and elbow grease.
I Just use plain water and a microfiber cloth
Take the windows off.
use 1:4 vinegar to water.