You might think advertising doesn’t have much of an effect on the way you spend your hard-earned cash, but these memorable ad campaigns will have you reconsidering. When some of the biggest companies in the world were on the brink of bankruptcy, these ad campaigns brought them back, and they’re still going strong. By using humor, celebrities, practicality, and even sex appeal, these ads caught our attention and showed giant brands in a new light. To understand why these ads were so effective, we’ll look at the problems each company faced and take a look at where they are now. Are your favorite brands on the list?