Matching Pairs Idioms with safetyOnline version Life 6- unit 2B by Mariangel Fernández 1 DO THINGS BY THE BOOK 2 BECOME SECOND NATURE TO YOU 3 BETTER TO BE SAFE THAN SORRY 4 FOLLOW THE CORRECT PROCEDURE 5 CUT CORNERS 6 ERR ON THE SIDE OF CAUTION To become natural. To improvise, to do sth without care so as to save time or money. To do things in the correct way. Don't try to make up your own rules. To do things in a very safe way. To do things in a safe way to avoid risk.