Apple - Pro - Tip of the Week

Faster Full-Name Viewing in List View
Here is a tip that will save you from having to resize your List or Column view columns — just hold your cursor over the file’s truncated name for a few seconds and eventually its full name will pop up. So what’s the problem? The “few seconds” part. Instead, hold the Option key, then put your cursor over the file’s name, and its full name will appear instantly.