Why have you decided to design a website?
Have you set any goal to generate leads from your website?
People design website for the very obvious reasons like following:
Earn from Affiliate Marketing
Help People etc
Conversions are everywhere, it varies from person to person and business to business to optimize conversions. Are you also getting lots of traffic and getting no sales. You need to optimize your sales page for good conversions. You need to optimize your landing page. Landing page is the important part for good conversions. Sales page should be cleared and clean. If you are optimizing your sales page with affiliates, makes sure that you have not used more affiliates in the same place.
I was searching an Infographics and found an wonderful graphics telling to optimize conversions for your website by QuickSprout. Have a look!