I spent this past weekend in Chicago with a couple hundred other dedicated FlyerTalkers going over the ins and outs of collecting points, getting up-to-date on the latest news from the points world, and giving a presentation on everything you need to know about using your American Express Membership Rewards points (with a few helpful tips on Chase Ultimate Rewards as well, of course).Before I started my full presentation, though, I was asked to give a little refresher talk on some key points terms for the audience, and I was given several that started with the letter “M,” kind of like a frequent flyer glossary. The terms I was asked to define were:-Mileage Run-Mattress Run-MR: standing for both Membership Rewards (more later), and Marriott RewardsSo take a look at this quick video for a quick review of each of those terms, with a few laughs thrown in, and let me know what you think or if you have any questions.Sign up for our daily newsletterEmail addressSign upI would like to subscribe to The Points Guy newsletters and special email promotions. The Points Guy will not share or sell your email. See privacy policy.Then check back later this week for a couple videos from my full presentation on American Express Membership Rewards, and the brief, informal Q&A session I conducted with the audience at the end. Enjoy![card card-name=‘Chase Sapphire Preferred® Card’ card-id=‘22125056’ type=‘javascript’ bullet-id=‘1’]