1. Not having a marketing plan.
2. Not differentiating your business from your competition.
3. Not having a systematic referral generating program.
4. Neglecting to communicate and market to your current customers.
5. Make money with other people’s customers.
6. Not realizing you are in the business of marketing your product or service.
with thanks to Hatoum Naji for more wise words
art from Leake Street