There’s no shortage of A+ guests on this month’s mailbag, as we tackle everything from selling old stock certificates to buying highly valued companies. And, we even give a few tips on how to avoid getting “Frozen” out of our internship opportunities.

Sponsor: Hello Monday from LinkedIn

How much is Etsy worth? $65? $70? Maybe $75? Try $8 billion, Fool! Because of course we're talking market cap, not share price. And if you know the market cap, you know the price tag of the business. And if you know that, you might just beat Emily Flippen on this week's Market Cap Game Show!

ESG: Environmental, Social, and Governance. Are these the concerns of our Fellowship of Foolish investors? Are they a burden that will spell doom for your returns? Or is it fair to say that when it comes to business, there’s some good in this world, and it’s worth fighting investing for?

We’re here to make you a better Fool, Fool! Organize your life, one thought at a time, always pull up on the correct side of the gas pump, and get through next year's holiday shopping without spending out of pocket. All that and more on this week's RBI!

Article link: Use Credit Card Rewards to Make Your Christmas Budget Merry and Bright

Sponsor link: Hello Monday from LinkedIn

With midwinter behind us, it's time to start thinking of new beginnings: new investors, new questions, a new Foolish index... That's right, it's a new mailbag, with special guests David Kretzmann and Megan Brinsfield!

We've set aside this episode to review not one, not two, but three 5-stock samplers from the last three years. What stocks did we pick? How did they perform? And most importantly, what can we learn from the discipline of keeping score?

Benton Moss is a young, standout investor and financial blogger with a very bright and Foolish future. Oh, and he's also a professional pitcher on the path to Major League Baseball! Benton joins us in front of a live audience here at Fool HQ to talk about the Buffett-style investing, the importance of focus, and the game and business of baseball.

Thanks Audible! Get Power Moves by Adam Grant for free when you sign up for a free Audible trial at Audible.com/foolpower or text foolpower to 500 500.

Some of the best ideas for gazing into the future were discussed… in the past! It’s time to go back and pick some of the most salient ideas from our catalog of podcasts and bring them forward into the light for a fresh look. We’ll be revisiting ideas from:

• Dark Clouds I Can See Through - Feb 17,2016
• Old, New, Borrowed & Blue - Apr 5, 2017
• The YODA Method of Measuring Management - Jan 20,2016
• October Mailbag: USA Core Values - Oct 26,2016
• The 6 "Hows" of Rule Breaker Investing - Sep 19,2018

Thanks to LinkedIn for supporting Motley Fool. Go to linkedin.com/fool and get $50 off your first job post.

With the polar vortex hammering down on a large part of the US, it seems appropriate to serve up a warm bowl of feel-good chicken soup stories. A poem or two, a peek behind the RBI curtain, maybe a board game… and of course a thought or two about investing. It’s the comfort food of podcasts to get us through these chilly days.

It's time for another 5 stock sampler, where David selects a handful of stock picks from his premium services and serves them up for a free tasting. But what is the theme that ties this week's picks together? No spoilers, but longtime listeners might be able to figure it out before the big reveal.

Sponsored link: http://www.molekule.com code fool75.

In remembrance of the life of Jack Bogle, we thought it would be appropriate to revisit this show from December of 2016. Bogle was the creator of the Index Fund, the founder of Vanguard, and an all-around stand-up guy who dedicated his life’s work to helping people invest better. You might say that Jack was the ultimate Rule Breaker, and truly a Fool's Fool.

We're not going to let a couple of losers get in the way of winning are we? Of course not! But it is that time of year when we take a look in the mirror and acknowledge our worst mistakes. In the spirit of transparency and good score-keeping, we present David's worst stock picks of the last 3 years, one lesson tagged to each.

Are you a "for" person or an "against" person? Hopefully we all aspire to be the former, but even so, we all need a little rant once in a while. So whether it’s obsessing over errors, giving short shrift to services, or #VanityPlateHate, let's get it all out now and enjoy the rest of the year on a positive note!

We're kicking off the New Year, not with a resolution to make our own lives better, but with a promise to pass Rule Breaker Investing on to the next generation. From infants to college grads, our talented panel will set you on a path to bring great fortune to the young Fools in your life. In the spirit of last Fall's "Get Started Investing" series, this one's for the kids!

This is the last mailbag of the year and it's full of presents! Gifts of poetry, games, inspiration, and levity shape this winter warmer of Foolishness.

A year ago David picked "5 Stocks That Will Let You Eat Cake" which focused on avoiding the trade-off mentality. Two years ago he picked "5 Stocks to Put Under the Tree" focusing on gifting stock. It's been a crazy couple of years in the market, but how did these picks perform? Time to check the score!

It's time once again for the game show that teaches you just how big a company might be. But for the first time, we have a new contestant! Emily Flippen takes over the hot-seat from the stalwart Matt Argersinger. But don't think that makes it any easier for you to earn your #IBeatEmily hashtag....

Esteemed game designer Richard Garfield made an appearance on Wednesday's show, but for those who want to geek out and dive deeper into his gaming past, present and future, today we present the full interview. If you want to be the one who addresses Richard by his first D&D character's name at the next Gen Con, this show is for you!

Investing may be the best game, but it's not the only game! Today we speak with game designer Richard Garfield about his genre-sparking innovations. Then David gives you his top 4 game recommendations for your family tabletop. Ok, more like 10. He can't hold back!

Pushing the limits of mailbag guests (five) and mailbag items (eleven), our cornucopia is spilling out a harvest of information on market dips, IPO investing, the Fool’s own ETF and more. Plus, a bit of Shakespeare and an epic disclaimer!

Sponsor links: Harrys.com/fool. Slack: Where work happens. Go to slack.com to learn more.

It was once thought that a company could be either profitable or sustainable, but not both. But as Paul Rice, CEO of Fair Trade USA, explains, the future of business is quite the opposite. With the rise of Conscious Capitalism and Conscious Consumerism, businesses will thrive by serving all stakeholders, including the environment and those at the very beginning of the supply chain.

The stock market has been a little harsh lately, especially for Rule Breakers. But when the best companies get whacked by general market conditions, that's Trouble with a capital T, and that rhymes with P and that stands for...Phool? These 5 winners may be down, but great stocks in the long run 'always go up more than they go down.'!

Thanks to LinkedIn for supporting Motley Fool. Go to www.linkedin.com/fool and get a $50 off your first job post.

Thanks to Netsuite. Get the FREE guide, “Crushing the Five Barriers to Growth”, at NetSuite.com/FOOL.

On the October 3rd episode of the Rule Breaker Investing podcast, we brought on a panel of Fools to help you, your friends, and your family get started investing. Today the panel (plus one!) is back to complete the series, to answer your questions, and to make sure you now have all you need to take that crucial step towards financial freedom!

Sponsored link: www.molekule.com code fool75.

Who's that at the door? A witch? An astronaut? A scientist? A biker? Well, we're giving out treats from our Halloween mailbag, as a motley array of listeners come to share their Foolishness. We'll also learn a great trick to help you look past a recently scary market.

From investing luminaries to picture books, and back to the bosom of the Bard. Today, David brings another motley collection of great quotations, with lessons on business, life, and Foolishness.