Woot offers Meguiar's Scratch-X 2.0, 7 oz. for $5.99 (orig. $10.99) + free shipping with Prime.

Product Description:
Keep ScratchX 2.0 close at hand for quick removal of isolated paint scratches or blemishes ... whenever they occur. Meguiar's exclusive micro-abrasive system enables ScratchX 2.0 to remove paint blemishes fast while restoring brilliant high gloss.
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• Quickly removes fine scratches, swirl marks and fingernail marks
• Clear coat safe
• Enhances paint color
• Ideal for use as a quick touch up or to revive a car's entire finish