Here's my tip for the day. If you have a choice in using either the cfsilent tag, or cfsetting enablecfoutputonly="true" use cfsilent.

Here's why

Easier to type

Easier to read

The enablecfoutputonly gets very messy when used across cfincludes.

The ColdFusion Developers Journal has an article called: CF Six Pack by Greg Cerveny which lists 6 tags new developers should be using.

I pretty much agree with all the tags on the list, except for cfsetting, I think if your a newbie, just enable whitespace suppression in the CF admin.