Deals of the day from Groupon in 5 major US cities

Chicago:

55% off at the Hyattt downtown on Select Nights (Only 500 Available for Each Night)

New York:

67% Off Choice of Spa Services, Including Facials, Massages, & Laser Treatments at Nina's European Skin Care & Laser Center

San Francisco:

$50 for $100 Off Any Service at Patrick Evan Salon & Spa (50% Savings)

Boston:

43% Off Any Eurostoves Hands-On Cooking Class

Washington, DC:

Make Your Smile Sparkle For $415 Less