Not all cookies are bad some help you login to your fave sites quicker - I use Firefox and that has easy options to just delete the ones you don't recognise
Set up the whitelist in its options for those sites for which you want to retain cookies - maybe because you don't want to log in each time you visit the site or perhaps the website uses cookies to keep display settings that you want to keep - and then cookies for all other websites are automatically deleted once you leave those sites.