we checked <em>every</em> page after the most recent change that we made?</p>
<p>After all, most of us have experienced (or heard horror stories about) making a Small Tweak™ in one area of the app that inadvertently broke <em>everything else</em> when we weren't looking.</p>
<p>Maybe we can write a checklist somewhere of all the things to check after making changes to our site. But surely, this will get out of hand as we add more features to our app. It is also going to get old really quickly—repetitive