Without underwear, frenzied fans would be forced to express their satisfaction in cliché fashion by throwing roses or sleeping chaperones onstage at hair-metal concerts. Uphold timeless tradition with today's Groupon: for $12, you get $25 worth of women's underwear and sleepwear from eUndies.com.

With a mission to enhance drab undergarment collections, this female-run business dresses women in comfort and style with a wide selection of fabrics and bright colors to match any mood. Savvy shoppers can choose from an abundance of unmentionables in cotton, lace, mesh, and other fashionable fabrics (all less than $7). Conceal curves with the Cross My Heart polka-dot bikini brief ($4.99), sewn in a seamless style to sport inconspicuously beneath a black dress or svelte superhero unitard. Girls with a tinge of tomboy can opt for the lace Brown Sugar boyshort to show off their strong-yet-sweet side ($4.99), and g-string theorists might select the ultra-low-rise Girls Gone Glam in one of four figure-flattering colors ($4.99). Material matchmakers can create color-palette-piquing pairs of pajamas with comfy, patterned PJ Boxie bottoms ($14.99) and 100% cotton tanks ($8.99) or tees ($9.99).Shipping is free on orders more than $50.