I junk mail offering me loans, i throw them away, but if applied for a loan, it would not get accepted anyway, so why dont companies do their homework first, if they offer me a loan its a waste of money sending it to me, the cost of printing, waste material when i throw it away, and a waste of the c02 carbon print everyone goes on about.
Best thing i did regarding the phone, i am ex-deirectory, and when sales people call, i tell them i am ex-directory they apologise straight way and say good bye. If you are ex-directory and they call you for a sales call they are breaking the law.
With post, if you know its junk mail, dont open it, write on the envolope not requested and put it in the post box, it will be returned to the company who sent it and they will be charged by royal mail and cross you of their mailing address.
I only know these things, cause i am a salesman and when i stay in hotels your on your own like most people in hotels in middles of weeks and you get talking to other sales men from other companies and you find out amazing facts like these