I use Adams glass cleaner and sealant, but I get much easier streak-free results using newspaper to apply the cleaner and buff it to shine, inside and out. Much easier for me than the Adams glass microfiber. The newspaper is finely abrasive and super absorbent. I realize that folks recommend this from time to time with little response, but I thought if you wanted to try an old method combined with a new product, what do you have to lose? It takes me two layers of crumpled up newsprint, rotated to apply/scrub on one side and then use the dry side to buff, and I replace the newspaper about six times to do my small car.