Modify the trace node in the web.config. Set the "enabled" attribute to "true":
<trace enabled="
true" requestLimit="10" pageOutput="false" traceMode="SortByTime" localOnly="true" />
Now you can run your pages normally, without having trace turned on for the individual page, and you can go to the trace page that is built into ASP.NET:
http://localhost/mywebapplication/trace.axd
This will give you a list of all the requests and from there you can click on the trace detail for each.