From this episode onward, Andrew Robinson (who plays Garak) is credited as 'Andrew J. Robinson'. According to Robinson, the "J" stands for Jordt - his grandfather's first name.
This episode also introduces a new runabout, the USS Volga. The episode "By Inferno's Light" later makes it clear that this is not a replacement for one of the other three runabouts, but a fourth runabout (three runabouts are used in the defense of DS9 while another was in the Gamma Quadrant. The others were the Rio Grande, Rubicon, and Yukon).
Referenced Rules of Acquisition: #17 ("A contract is a contract is a contract... but only between Ferengi") and #239 ("Never be afraid to mislabel a product")
Garak's line about the various means to end one's life, by which Quark has rejected (particularly the nerve gas part) bears a slight resemblance to Dorothy Parker's famous poem "Resumé"; "Razors pain you; Rivers are damp; Acids stain you; And drugs cause cramp. Guns aren't lawful; Nooses give; Gas smells awful; You might as well live."