Batting your eyelashes can express everything from coy admiration for a crush to frustration over studying in a strobe-lit library. Let eye adornments speak volumes with this Groupon. $99 for Xtreme Lashes "Dream" Eyelash Extensions ($250 Value) During a one-hour appointment, a trained technician applies 50â€“60 synthetic eyelash extensions to each eye. Clients can pick from four thicknesses and two levels of curl to customize their look, and lashes should last 60â€“90 days with proper maintenance. Although they are not included with this Groupon, refills are recommended every two to four weeks.