I don't want a snoopy exspouse to see my info on my laptop... how do I clear the cookies and cache?

Depends on your browser:

Firefox: http://support.mozilla.com/en-US/kb/deleting%20cookies

Internet Explorer: http://support.microsoft.com/kb/278835

Google Chrome: http://www.google.com/support/chrome/bin/answer.py?hl=en&answer=95582


If none of these help, search on google: How To Delete Cookies (http://www.google.com/search?q=%22how+to+delete+cookies%22&ie=utf-8&oe=utf-8&aq=t&rls=org.mozilla:en-US:official&client=firefox-a)

You can add your own browser into the quotations to find your browser's options.

Ex-Spouse? Why would they have access to your PC?

Anyhow, the links provided by angelica are good.