- Best keep it out of sun.
- Clean your windshield, try to keep it out of dust and debris (try not to wipe when there is bird poop).
- Use a proper windshield washer additive.
- Do not over use the wipers when the glass is dry.
- Use quality silicone wiper blades because it last longer than a conventional rubber type.
And change the wipers if they are: As described on the picture.