Alexandra Paul: Hi, I'm Alexandra Paul, and here's my green tip of the day: If you are going to go out and buy something, first ask yourself, do you need it? Do you really need it? And secondly, if you feel like you don't really need it, but hey, you really want it? Really look and see if you really want it. And the third question to ask yourself, 'Is it really going to make my life better?' And after that? Maybe you won't really buy that thing.