Definitely don't see the logic in saving money by changing blades 2-4x yearly. Yes the blades I choose to use are a bit costly, but to get 3 solid years of great performance out of a set is worth every penny to me. To each their own...Carefully examine in different angles the light going through the glass. Chances are you have very small pitting? DON"T use steel wool that use to be an "old School" thing but even back in the day it WILL scratch your glass.
There is no need to spend money on high dollar wipers, I recommend an inexpensive brand and change them at least before the rain season or 2-4 times a year. I also not not recommend anything to be used on the glass except glass clean. Many of the other thing can and does accumulate in the small pits and will adversely effect the wipers effectively wiping the water off your glass.
The biggest complaints are from from people that have had their glass replaced. They don't realize that there are different quality and hardness of glass available. And that that guy in the no name truck with the "best" glass replacement deal is also buying the least quality glass on the market and it is likely harder glass which will pit faster and ultimately effect how well the wipers will work.