software feature wanted

one-step exit from deep within a website.
This feature exists in micro form for cell phone funcionalities, and it would be very convenient to have it also available as a web browser option. On my cell phone, I can, for example, go more than one level deep into the ‘clock’ feature, but there is an external button that I can press to take me immediately out of the ‘clock’ feature. What I’m asking for is that if I go into a website and navigate to some page-level deeper than the first, that there be some button I can click on to take me immediately back to the browser search results, rather than having to reverse all my steps within the website to exit the website and get back to the browser search results.
keywords: cyberspace, navigation, bailout