I should have clarified that they were both part of the same kit, with no other cloths provided.
Also, what I do is pretty much the same as what Zeiss says to do in their instructions, see this video link (couldn’t find written instructions on their site): www.zeiss.com/…/eyeglass-cleaning-solutions.html#…
Lastly, what do you mean by using the spray and cloth apart? Do you mean using the cloth dry? Because that is even greasier than using the spray+cloth.