Where do I find them on my computer?

Start/control panet/network and internet/ delete browsing history and cookies.

You can delete the following...
Temp files/cookies/passwords/browsing history

I recommend to my clients that they clean cookies fairly frequently. CCleaner is one of the simplest ways to do this and it's free (free as in no cost).

CCleaner - Home (http://www.ccleaner.com)

Download CCleaner 2.19.900 - FileHippo.com (http://www.filehippo.com/download_ccleaner/)

You can even set up CCleaner to retain just the cookies you want to keep.

When you install CCleaner, I recommend against installing the Yahoo toolbar.

Thank you both. Cookies are gone.