What do losing weight and saving money have in common? The answer: a lot. First of all, both can be filed under the I’d-rather-eat-a-litter-box-than-do-this category. Also, the success rate of accomplishing either among the general population is equal to the probability that you’re Princess Leia’s twelfth cousin. And the most striking similarity between the two is the way we go about them—most people think that both require tons of self-discipline to pull off. The canonical…