I like the way Harvey Milk did it. Got everyone who was gay to tell their family. That way when a bill came around or when a conversation was sparked, that persons family would be on the correct side.
So this can easily be applied to our cause too!
Everyone in my immediate and extended family(cousins, aunties etc.) knows I smoke occasionally and know my views on the matter. Only ONE of them thinks pot is really bad but he still thinks drugs should be legal "so they can destroy themselves". Yeah his reasons are fucked but at least he think it should be legal!