Target offers free refills on its bottles of lens cleaning solution : r/Frugal
Oakley Oil Drum Replacement Lenses by Revant Optics
Free Refills On Cleaner? | Oakley Forum
Amazon.com: GreatShield Lens Cleaner Spray Kit, 2X 2oz Cleaning Solution Bottles + 2X Microfiber Cloths, Streaks and Alcohol Free, Removes Fingerprints, Dust, Oil, for Eyeglasses, Cameras and Safe for All Lenses :
Lens Cleaner Refill – Green Oak Professional Lens Cleaner Refill– Best for Eyeglasses, Cameras, and Lenses - Safely Cleans Fingerprints, Dust, Oil (1 Gallon Refill) - Walmart.com