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 $35, you get a specialty mani-pedi (a $70 value) at Zazen Nail Spa in West Chester.

Zazen Nail Spa provides a clean, green, calming oasis, rich with skilled aestheticians who revitalize appendages with a variety of spa services. During each specialty mani-pedi, guests settle into a sleek, modern pedicure station, accented with colorful, plush pillows. A skilled technician treats fatigued feet first, offering patrons a choice between the tropical-citrus or paradise styles. Nail specialists soak toes in a citrus or aromatic bath, followed by a lemon-sugar or grated-coconut exfoliation and essential-oil application. A foot and leg massage soothes achy muscles, and a moisturizing citrus-honey mask or an organic shea-butter wrap hydrates the skin. The specialty tropical-citrus or paradise manicure closely mimics the foot-oriented equal, rounding out distressed fingers and nails and massaging the shoulders, arms, and hands.