Damn, I can't edit this any longer. Just in case this pops up on Google for a decent way to achieve this, my last Latex example is missing needed \\ commands. It should be:

  \begin{tabularx}{0.9\linewidth}{|l|X|}
  \hline
  \textbf{Title A} & 
    $\bullet$ thing 1 \newline
    $\bullet$ thing 2, but it's much longer than the other items \newline
    $\bullet$ thing 3  \\
  \hline
  \textbf{Title B} & 
    $\bullet$ thing 1 \newline
    $\bullet$ thing 2, but it's much longer than the other items \newline
    $\bullet$ thing 3 \\
  \hline
  \textbf{Title C} &
    $\bullet$ thing 1 \newline
    $\bullet$ thing 2, but it's much longer than the other itmes \newline
    $\bullet$ thing 3 \\
  \hline
  \end{tabularx}