Though unmentionables once referred to all manner of things––Grandpa's missing hands, Phlogiston theory, and the truth about cats and dogs—only one thing is worth not mentioning today. Don't say a word with today's romance-clad Groupon: for $20, you get $40 worth of lingerie, sleepwear, and other intimate apparel at Leissa Lingerie.

The professional bra fitters at Leissa Lingerie outfit feminine silhouettes with top-tier brands such as Prima Donna, Chantelle & Marie Jo. The Spanx power panty ($46) slims midsections for more graceful dives through elevator doors, and a Passionata bra ($65) or Arianne U-Bra ($40) provides sturdy yet flattering support. Panty styles span the spectrum, from the Arianne boyshort ($29) to the Calvin Klein seamless thong ($20), whose flirtatious cut adds a sultry side to modest suits or sports mascot costumes. Additionally, Leissa Lingerie's certified prosthetic fitters avail themselves to assist patrons in securing a natural, comfortable fit.