I am using saved filters in a number of areas of JIRA. For example on dashboards. On some of them I do not want to filter out any issues but the gadget asks for a saved search so I need one that includes every issues in JIRA.
I have got around this by doing a query of "key != ZUI-1" (this being a random issues that I know I do not need in the list of all issues).
However, I am wondering if there is a much simpler way to do this.