There's no need to receive junk mail through your door, junk phone calls on your landline or mobile, nor junk faxes.
People keep ringing me up. The post office keeps dropping junk mail through my door. They are all trying to sell me stuff. Stuff that I am not interested in, stuff that I haven't requested. If they include a pre-paid envelope I like to send it back to them with a telephone directory attached (for the weight). I add a note to say, thank you for your rubbish, please have some of mine. I never buy from these companies. I am quite capable of deciding what i want to buy and from whom without the "help" of all of these companies and their "clever" marketing people.