Funny you should mention Microfiber towels. I've just started using them too. They work incredible for just about everything. However, you don't need any cleaner with them. You can do your windows using one damp one and following right behind with a dry one. Perfectly streak free. The only thing about microfiber is caring for it. They say not to wash them with other rags because the lint gets picked up by the microfiber. And they also say never use fabric softeners with them.

For anyone who doesn't know about microfiber, but has had Oakley sunglasses, those bags that come with Oakleys that they say to use for cleaning them are made of microfiber.

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Eric Konarske & Lara, my X
'01 Solar Yellow XE 3 Pk. 4x4