Cars technical recommendations and advices:
Wipers:
You should be accustomed to check wipers whenever you clean the front glass of the car, aiming to improve vision. Don’t wait till the wipers rubber becomes unusable. Repair it as fast as you can, because you may face rainy days which makes safety driving difficult. Change the wipers’ rubber once a year to secure clear vision.
You can change the whole parts of the wiper or just change the rubber part which doesn’t cost much compared by the whole parts. It may become necessary to change the whole parts in case the car was old and rubber bearers became rusted.
Notice: Change each wiper separately to avoid getting confused, since some cars don’t stand to replace the right wiper with the left one. If your car has one wiper this would be easier.