What can I do about my family they do not listen?

-there always giving me things I do not need or want or already have plenty of and refusing to take no for an answer. I am a person who hates having excess clutter. I am what you would call a minimalist and I like to limit my stuff to a certain amount. I am about to throw their stuff in the trash if this continues and cut them out of my life, it would serve them right for not listening to me.