Nail polish was invented around 3000 BC in ancient China—a fact that's doubly remarkable considering that human fingernails were only invented last year. Celebrate this admirable foresight with today’s Groupon: for $15, you get a full spa manicure at ten20, located in Boulder (a $31 value). Today's Groupon is by appointment only and expires three months from today's date.

A youthful, modern glamour sets the stage at ten20, where a friendly staff relaxes and converses with patrons in front of a big-screen television. During the 45-minute “tenfingers” manicure, your opposable knuckle sticks will be equipped with shiny new finger helmets worthy of a Costanza hand model. Put your hands where a member of the skilled staff can see them, and you'll be rewarded with a neat nail trimming. Perfectly symmetrical tips will take the place of formerly unruly edges. Cuticles will be gently groomed into a more sightly disposition, leaving your handle bars feeling buttery and spry. After a gentle massage of the arms and hands, a deliberate polishing finishes up your transformation from hand abandon to extreme extremity envy. Over the course of your skin-mitten renovation, use any free appendages to help yourself to complimentary Diet Coke and M&Ms, which you can sip and munch while taking in an episode of Sex and the City, Ellen, or Matlock on the massive monitor before you.

Lipstick-red curtains, pleasant lamp lighting, and a chatty team lend to the welcoming, comfy atmosphere inside ten20. Use your Groupon to stage a lively girls' day out or plan a guiltless getaway from the perils of professional butte dusting.

Call to schedule your appointment. Services are subject to availability.

Reviews

Yelpers give ten20 a 3.5-star average, and both Insider Pagers and Citysearchers give it an average of three stars:

• The quality of my manicures and pedicures have been awesome. I'm rough on my hands and the paint has lasted for weeks - they only use good quality products and it is clean in there. – Leigh S., Yelp
• I love the idea of Ten 20, a place just for manicures, pedicures, and waxing. Big screen tv, free m&ms and coke, popcorn and bottled water. The staff is young and really friendly and they have fun, interesting products and lounge wear for sale. – rowan_amy, Citysearch
• It's geared towards younger women, but it was fun and reasonably priced. It wasn't the least bit "uppity" which I liked. – Tessa K., Insider Pages