session variables

How do I set session variables in coldfusion?

I Know I am a rookie.
DysfunctionalAsked:
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CFDevHeadCommented:
<cfset session.mySessionVariable='blah blah'>
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CFDevHeadCommented:
Make you application looks something like this


<cfset app= structNew()/>
<cfset app.sessionTimeOut=#CreateTimeSpan(0,0,90,0)#/>
<cfapplication       name="myApp"
                        clientmanagement="yes"
                        clientstorage="cookie"                  
                        setclientcookies="yes"
                        setdomaincookies="yes"
                      sessionmanagement="yes"
                        sessiontimeout='#app.sessionTimeOut#'
                        applicationtimeout='#CreateTimeSpan(0,5,30,0)#'>

And check out a book on CF
http://forta.com/books/0321125169/
 ColdFusion MX Web Application Construction Kit
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