21.   Remembering that helps keep them straight.

22.   Restaurateurs who have installed atm machines call them a boon to diners that helps keep down expenses.

23.   Scientists are mixing blueberries and cranberries into ground beef to learn if the fruit helps keep the meat tasting fresh.

24.   Several floors are being refitted with lighting that helps keep the heat down amid the machines.

25.   Rubin said a strong dollar helps keep U.S. interest rates and inflation low.

26.   That helps keep the emphasis on proper boxing style, he said.

27.   That, in turn, pushes down the price of beef and helps keep overall food prices in check.

28.   The gradual emptying of the camps helps keep a lid on tensions, Allen said.

29.   The seder meal often runs late, and this custom of Afikoman for prizes helps keep the small children interested in participating in the seder.

30.   The staff at Footsteps, a Reston store managed by his coach Scott Raczko, helps keep him grounded.