Seventeenth-century shipping routes drastically improved once navigators began referring to actual maps of waterways instead of the veins on their thighs. Steer clear of veiny skin with today's Groupon: for $150, you get one sclerotherapy spider-vein treatment (a $350 value) at Calcagno and Rossi Vein Treatment Center, located in Mechanicsburg. Led by a pair of board-certified vein experts, Calcagno and Rossi Vein Treatment Center clears unsightly vascular blemishes with state-of-the-art technology. Using sclerotherapy––a safe, foam-based medical injection––the team terraforms unsightly networks of unused and unwanted skin spindles into smoother, blemish-less dermascapes. Upon injection, the foam solution shrinks the enlarged veins, causing them to fade as blood is rerouted into healthier nearby veins, which boast higher property values and lower crime rates. In certain cases, veins may become temporarily inflamed immediately following the treatment, but swelling should subside as the body absorbs them over time.