Amazon.com has the Meguiar's X2020 Supreme Shine Microfiber Cloths (Pack of 3) for $3.89 as an add on item with free shipping.
The easiest and fastest way to remove polishes, waxes, and spray detailers
The ultimate wipe off towel for producing show car perfect results on paint, glass, plastic, and chrome Incredibly plush microfiber towel for producing swirl-free, mirror-like results
Thick, deep dual-sided microfiber pile absorbs two times more than traditional terry towels providing faster wipe off with less strokes
3-pack, Large 16" x 24" towels