It is possible that you do not notice the icons on your site or do not pay much importance to them. But the sooner you do so and place them at strategic places, the better for you and your visitors to the site.
Indeed, icons guide visitors and help them navigate the site. Today, visitors to a site do not wish to waste time looking for content. They need quick pointers or else they will exit the site. When they do so, it is your loss and you need to do everything possible to hold their attention. Webmasters who have not accorded priority to well placed and designed icons have lost sales and traffic for ever. But that does not mean they have to get into the designing of icons all by themselves and spend time setting them up.
That can be a time consuming effort as each of the projects could be different. The solution is to use well designedicon sets that have already been created by designers. Just download them and place them at the right areas on your site. These designers have created them taking into account their visibility and you cannot go wrong using them to attract attention of the visitors to your site.
Make sure though that you select eye catching icons that help visitors by guiding them to the right pages and sections of your site. Have a look at the link below to get an idea of the icon sets that are used and have been proven to be effective.