Smart Trim Mar 12th, 2014 (updated Jan 30th, 2015) Smart Trim implements a new field formatter for textfields (text, text_long, and text_with_summary, if you want to get technical) that improves upon the "Summary or Trimmed" formatter built into Drupal 7 Read more about Smart Trim
htmLawed Dec 16th, 2013 (updated Sep 20th, 2014) The htmLawed module enables the use of the htmLawed(X)HTML filter/purifier with text/input formats. This module lets you use very fine grained html filtering. See /docs/common-htmlawed-settings for common settings. Read more about htmLawed
Panelizer Nov 23rd, 2013 (updated Sep 14th, 2014) "Panels are great, but how do I change this one page?" Read more about Panelizer