This document provides quick and easy ways to cut calories and make smarter food choices through small substitutions and changes. It recommends tracking calories using apps, practicing mindful eating, and making minor substitutions like using mustard instead of mayo or Greek yogurt instead of sour cream. When dining out or at social events, it suggests requesting smaller portions or healthier options and having a plan to stay on track. It also notes potential derailers like holidays or late nights and stresses having a plan of attack.