I initially clean my screen and blades with methylated spirits to remove the grease, even so my driver blade is on it way out, I will just replace both when the weather picks up, it’s initially my responsibility to keep the car in a safe roadworthy condition.
I remember my dad used to use the old meth cleaning the blades many moons ago and it does the job and that water dispersal stuff helps as well I think it is rain X but there are other makes as well.