I knew about JavaScript trick, but I like more trick with using $ENV{'HTTP_REFERER'} and will use it in my current project. Why? It works also if client disabled JavaScript (as I did recently).
Quite often I'll also just add plain link (or submit button) like {Back to Main Menu} or {Close All Open Issues}, just to bypass multiple {BACK} commands and start fresh. Sometimes it's easier for users to start afresh.

pmas
To make errors is human. But to make million errors per second, you need a computer.