Read the excerpt from "Dwaina Brooks.” Coupons helped cut the prices for sandwich wrapping, cookies, and mayonnaise. Dwaina's uncle got them discount lunch meats from the store where he used to work. Thursday night was bargain night at the bakery in nearby Lancaster. They drove away with six big loaves of day-old bread for 1 point 7 8 dollars "Mama, do you think anyone at the shelter will really eat day-old bread?" Dwaina asked. "We eat it," Gail replied. "If it don't kill us, it won't kill them." The baker gave them twenty free boxes, too, when he heard how they would be used. Dwaina's aunts and uncles brought over huge sacks of chips and big bottles of salad dressing. What idea is emphasized through repetition?