- Cook the case: Boil for 5 minutes every month to kill bacteria; air-dry.
- Don't mix it up: Use one type of cleaner for each pair. Chemicals can get stuck inside soft lenses, and competing brands could cross-react and irritate your eyes.
- No swapping: Resist the urge to borrow your buddy's novelty lenses for the big game -- or you may end up sharing more than team spirit.
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