Shopping in Cambridge

Down to Basics offers premium bedding intended to make your sleep sac so cozy that you can't help but sigh and express a hint of shock each time your head touches the perfectly poofed pillows. The high-end quality will elicit teary-eyed reminiscing of the blissful night spent sleeping in a luxury barn motel using baby lambs for a headrest. Since down pillows don't fit as easily into suitcases as hotel shampoo and hand towels, today's Groupon will save you a ton on a pricy oversized suitcase with pillow-smuggling compartment.

As December 21, 2012, approaches, many Americans eagerly await the moment when Hades will emerge from the Underworld to recklessly devour raw egg. Until then, experience man-made terror with today's Groupon that suits you up in leather and vinyl just in time for Halloween: $10 gets you $20 worth of Halloween costumes and costume accessories at Horror Business, Boston's independent purveyor of all things hardcore. Horror Business specializes year-round in punk rock, metal wear, and clothing by local designers, and they've just added a trove of terrifying, sexy, and terrifyingly sexy costumes for the impending masquerade-ball season.Follow @Groupon_Says on Twitter.

Eight out of 10 women and 10 out of 10 men are rocking the wrong bra size. Comfort issues aside, this predicament can lead to headaches, back pain, and arms that tingle from decreased circulation. The Zyrra process changes all that. Instead of relying upon a number and a few letters to determine your bra size, you'll receive a 10-measurement analysis in just 10 minutes. Every angle and curve is covered and then sent through a system that analyzes the data to achieve the perfect individualized bra pattern. Fitting appointments are required, and available Monday through Friday, 10 a.m.–5 p.m. You may also arrange for an in-home fitting for an additional fee (approximately $15, depending upon travel distance).

Many view looking good and seeing well as dual goals attainable only by monocle-graced cyclopes. Envision your new visage with today's Groupon. For $50,you get $125 worth of frames and glasses lenses at Q Optical, Boston Magazine's pick for Best Eyeglasses in 2005. Located on Newbury Street in Boston’s Back Bay, right off the T Green Line, Q Optical specializes in high-end European frames and lenses that refract light with elegance and subtlety.

Inside the box lies a sampling of different caviars and all the necessary accoutrements, such as a mother-of-pearl spoon and an info card. By using only high-quality American caviar, The Little Pearl offers a lightly buttery taste without being fishy or salty. Even novices to this luxurious specialty will enjoy the rich flavors encountered on the palatal journey through the box's contents. Each one includes:

The friendly staff will answer any and all questions with a professional demeanor that makes unmentionables comfortably mentionable. They are also masters of measurements, so take advantage while in the store. A properly fitting bra can reduce back strain and annoying fractal imprints left behind from too-tight undergarments. Pick up a throng of the comfortable Hanky Panky thongs ($18 apiece), or splurge on an Aubade bra ($127) that feels more like an extension of your body than an article of clothing. Wrap up inside a luxurious Mary Green kimono silk robe ($90), or take this Groupon to bed with an Eberjey pajama set ($110). Tell your girlfriends to grab today's deal so you can take your time browsing for your next favorite pair of underwear with the ladies.