It was a game show in the '90's, but these lifelines can really work anytime. After a recent re-watch of Slumdog Millionaire (holds up!), I started remembering a few of the ins and outs of this gameshow. Turns out, all the lifelines they offered contestants to help them field trivia questions work in real-life situations too, especially when it comes to the one major area where we face tough choices every day: shopping. In fact, I've already used all three of these concepts without even realizing it.