Tinted windows allow car passengers to look out while preventing the sun, other drivers, and voyeuristic parking tickets from glaring in. Shield yourself from road violations with today’s Groupon: for $40, you get $100 worth of automotive window-tinting services at Quality Bumper in Mesa, Peoria, and Phoenix.

In business for 43 years with 45 years of collective experience among its certified installers, Quality Bumper guards cars’ inner cabins from heat and glare by outfitting side, back, and front glass with SunTek films. Technicians darken portholes of various vehicles including four-door sedans ($169) and full-size SUVs ($209) with SunTek’s High Performance series, a charcoal-finished film that blocks up to 99% of harmful UV rays and filters out cat-calls from envious mopeds. The film also enhances visibility by reducing glare and increases passenger comfort by reducing heat buildup inside the vehicle. A limited lifetime warranty champions high-quality workmanship and protects cars from developing crow's feet from squinting into the sun.