How have you prevented brake dust from building up on rims?

I've heard about people applying polish/wax/sealants to the rims to prevent bonding and have heard about people getting opticoat applied to the rims.

Any one have personal experiences/recommendations that they would want to share?

Pretty sure Adz would have have words of wisdom on this subject.

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2015 Forester XT Premium
2020 VW Tiguan Allspace
teejay: If I wanted a comeback Id wank in front of a fan