AWR taking too much SYSAUX space

While we might take our AWR data for granted, but the My Oracle Support article "How to Address Issues Where AWR Data Uses Significant Space in the SYSAUX Tablespace" from note 287679.1 shows us several ways that we can run out of space in SYSAUX.  These points should be yet another monitoring hook for us, so we keep our system up and running 100% especially if we decide to make modifications to how we capture or retain AWR data!