I plan on mailing big USPS flat rate express envelopes (the big ones 14 inches by 9 inches I believe) to every business in my area and want to put something in them to really grab their attention. I don't care how much each package costs and please don't tell me to send postcards I want to send big envelopes and put something in them and don't care how much I spend on the campaign. The questions:
1) What bulky thing should I put in them to grab the persons attention?
2) Most importantly, what should my letter look like? Should I simply put "let me double your clients for you at *business name* Call me" or should I make a detailed report About why online marketing is important?
I'm really lost as to the second question since I am sending a big package I don't know if I should give them a detailed report or tell them to simply call if they want more customers.
Thank you so much any case studies or useful posts really appreciated