I recommend just using a quality microfiber cloth, such as those designed for spectacles or camera lenses. From my own experience with iKlear I'd advise staying away from any polishes or solutions unless you really need them.
I bought alcohol-free wipes @ walmart for $2 a pack. I bought an eyeglass lens cloth to wipe any dust off the glossy screen, also @walmart, for another $2. They work perfectly. I'm a fan of low-cost solutions.