Breadcrumb class and helper

Is there a breadcrumb class and helper that the community particularly likes?

I'm considering implementing my own as a stack-like class and storing it in session.

Jose

Check out
http://rails.techno-weenie.net/question/2006/6/13/generating_menuss_and_breadcrumb_trails

http://www.ruby-forum.com/topic/79239 -- this site has the link to the actual code. The usage also
looks simpler.