You should try to clean used polish off of your buffing pads during use, as clean pads will work more efficiently than dirty ones. To clean foam and microfiber pads, you can hold a microfiber towel against your pad, turn your polishing machine on, and allow the towel to absorb the used polish. To clean a wool pad on the go, use the same technique, but replace the microfiber towel with a pad spur. After use, you should always make sure to clean your buffing pads thoroughly, ideally using a specialist cleaning solution, but failing that, submerge them in a mix of warm water and car soap, and hand wash them gently. Try to clean your pads while they are still wet with polish/wax/sealant, as it will be easier to remove. Rinse your pads in clean water and allow to dry completely before storing them in a clean and moisture-free environment, to prevent mold. Cleaning and taking care of your buffing pads in this way will ensure they function to their best level and last as long as possible.