You can alter the settings in your browser to prevent cookies from being saved. Doing so may lead to a deterioration in the performance of certain websites and may lead to certain functions being disabled. If your browser supports incognito mode, you can activate this and your browser will not save any cookies for as long as you surf incognito. You can also erase already stored cookies from your computer yourself whenever you like.
You can find further information about cookies on the Swedish Post and Telecom Authority website.