You have likely dealt with a customer who simply wants the job done for the least amount of money. While that's perfectly fair, you can still use these situations as opportunities to educate your client about your company, learn what their actual motives are, or even make a sale.
Michael Stone at Markup and Profit has valuable tips on how to interact with these customers. Patience is key!
"Remember not to get emotional or upset," Stone cautions. "You need to keep your blood pressure and temper under control. Stay cool, listen, ask questions. If you can find some common ground, build on it. There might be a job there. But be aware that people who start out thinking cheap don't change their mindset often and are only worth a limited amount of your time."