If your mother earns more than the personal exemption for the tax year in question ($3,900 in 2013), then she is not eligible to be claimed as a dependent by another individual. Keep in mind that income from Social Security does not count for this purpose.
A lint roller in use. A lint roller or lint remover is a roll of one-sided adhesive paper on a cardboard or plastic barrel that is mounted on a central spindle, with an attached handle. The device facilitates the removal of lint or other small fibers from most materials such as clothing, upholstery and linen. Once expended, the roll can typically be replaced with a refill roll. Invented in 1956 by Nicholas McKay, Sr., his most well-known (and first commercial) product was the Lint Pic-Up, the world's first lint roller. Reusable lint rollers use elastomers, including silicones and polystyrene-ethylene-butylene-styrene as a reusable tacky surface.
Linus and Lucy  is a popular jazz piano composition written by Vince Guaraldi, appearing in many of the Peanuts animated television specials. Named for the fictional siblings Linus and Lucy van Pelt, it was released in 1964 on the Vince Guaraldi Trio's album Jazz Impressions of a Boy Named Charlie Brown. A Charlie Brown Christmas introduced the song to a television audience of millions of children beginning in 1965.