Do not open this if you already know how to reach millions of potential customers.
I will invest some money in a direct mail campaign and I need a sure way that my targets will open and read my sales copy, so I will hand transcribe the headline 'Do not open this letter if you already know how to reach millions of potential customers' on the back of the enveloppe.
So what do you think? can that headline be improved? will you open that letter the same way you opened this thread?
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