MITZVAH HERO ALL GUTS No GLORY , DO-GOODER CARRIES OUT GOD'S COMMANDMENTS. WRITTEN BY KIMBERLY LIFTON PHOTOS BY GLENN TRIEST he's 82; she's fast, and she's been doing mitzvot ever since she was 12 years old. Rebecca Blumenfeld is constantly on the go — cook- ing for those who are too ill to prepare meals for them- selves, escorting fellow seniors to doctors' offices and often scheduling appointments for them. "I like to give," she says. "But we don't show off." At the Jewish Federation Apartments in Oak Park, Mrs. Blumenfeld phones neighbors who need reminders to take medica- tion. She translates for Russian immigrants. And though she does not drive a car, she walks or takes a bus to the local grocery store to shop for residents who are too sick or too weak to do the task themselves. "You often see her carry- ing a laundry basket to or from the laundry room," says resident Albert Lipton. "Chances are that the laun- dry is not her own but that of a handicapped neighbor." She plays cards with resi- dents in need of a little com- panionship. She tidies up apartments, and s-he takes out trash. "Although Becky seeks no glory for her mitzvahs, she can't stop the people around her from noticing her good deeds," Mr. Lipton says. "I feel like 39 or 40," Mrs. Blumenfeld jokes. "There's no time to stop. Not me. I'm on the go. I hope until my last day I will be helping people." A grandmother of 17, she also has eight great-grand- children. She hopes to live to see all of their b'nai mitz- vah ceremonies and their weddings. "With God's help, I will get to 100." Each day, beginning about 9 a.m., Rebecca Blumenfeld walks through the halls of the Jewish Federation Apartments. She wears a plain dress and a floppy old white hat, armed to cook, clean or help a senior into an elevator. "Becky is a driven woman. She is impelled to do at least one good deed every day," Mr. Lipton explains. "She knows by