I have a personal creed that I now live by.

I WILL NEVER buy anything from anybody that comes to me. Ever.

If you have a great product or service, good for you. Hang up a shingle, take out a craigslist ad, or get an established distributor to carry your product. When the time comes that I want it, it better be easy to find using Google, be competitively priced, and have good reviews.

A good sales guy answers the phone or returns an email after I contact them. Cold calling me? Fuck you.