If you’re working in a window set to Column view, you’re going to run into this all the time — files with long names have the end of their names cut off from view, because the column isn’t wide enough. That doesn’t sound like that big of a problem, until you start working with more descriptive file names, and you can’t see which file is “European Front End Silver Car” and which is “European Back End Silver Car” because everything from “European” to “Silver Car” is cut off.
Luckily, there’s a quick fix — just double-click on the little tab at the bottom of the vertical column divider bar, and the column will expand just enough so you can see even the longest file name of any file in that column. Option-double-click on the tab, and every column expands to show the longest name in each column. Pretty darn sweet!