Cookies In Use On This Site
I do not collect any personally identifiable information about you using cookies.
In fact, on this site, cookies are only used for Google's Analytics (what site doesn't?) and for 'Social Media' - as I have a Twitter follow button and widget installed (again, like most sites). That's it.
Turning Cookies Off
You can usually switch cookies off by adjusting your browser settings to stop it from accepting cookies (learn how here). Doing so however will likely limit the functionality of a large proportion of the world's websites as cookies are a standard part of most modern websites.
It may be that your concerns around cookies relate to so called 'spyware'. Rather than switching off cookies in your browser you may find that anti-spyware software achieves the same objective by automatically deleting cookies considered to be invasive.
I hope this information helps in understanding cookies, and the basic use with regards to this website.