Like a jilted lover, the sun has been angry with humans ever since the creation of fire, light bulbs, and affectionate glowworms rendered his services less exclusive. Trick the sun into thinking he's done his day job with today's Groupon: for $27, you get one custom sunless-tanning session (a $55 value) at Glow to Go in Federal Hill.

Developed in Beverly Hills, Glow to Go's sunless solution offers a safe and effective way to achieve beachy bronze in less than 10 minutes. A healthy alternative to UV beds and venomous minnow exposure, the spray tan process at Glow to Go employs Infinity Sun technology, which boasts being all natural and carbon neutral. Certified tanning technicians use airbrushes to apply customized color, misting contours with a special mixture of anti-oxidants and pure botanicals to leave skin hydrated and vibrant, like a marching band in a swimming pool. All sun-styling sessions take place in Glow to Go's 1,400-square-foot facility, and clients are encouraged to shower, shave, and remove lead aprons before swinging by for their treatment.