All my windows were spotty when I started wfp. Next time I cleaned I thought, no more spots! Back third time, still spots.
But I already know why? I was washing all that soap and dust off. Now? No spots at all! Windows are clean when I get there waiting for me
I hardly believe it myself, no need to rinse, just quick wash & go.
You've got to be mad not to try it! Sorry, but that's how it is.
I still use mop & squeegee in porchways, and inaccessible places.
Only a fool
refuses to benefit himself