Over time, my key that I use the most has become a bit dirty and worn looking. I was wondering what the best method is for cleaning it really well and get it looking a bit newer. I don't want to damage it with any harsh chemicals, so what do you all recommend for the job? I'm thinking diluted alcohol on a Q tip for the crevices? Maybe just warm water with diluted soap and elbow grease to get the rest? Any ideas?

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2001 X5 4.4i
2002 Honda S2000