Have you ever wondered what Tracy and Holly smell like? They’ll tell you! They’re also eager to talk about how people use and perceive perfume, and why cottage-industry perfumeries attract such devoted followings.

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Greatest Hits: Perfume: The Culture of Scent

Both Tracy and Holly love new games, but they also fondly recall the early days of the video game industry. Take a trip down memory lane as talk turns to arcades, “Wreck-it Ralph” and why gamers get so attached to the titles.

Greatest Hits: Nostalgia for the Good old Games

The entertainment market is saturated with supernatural creatures, but vampires and zombies seem to be the most popular, with werewolves coming in a close third. What will we be seeing the most of once the various iterations of the undead are played out?

Greatest Hits: Zombies and Vampires and … where is this headed?

You can get Hello Kitty everything. Everything. Tracy and Holly talk about the famous cat’s beginnings, staying power and her many Sanrio friends. Just how did a feline with no film or television origin get so popular in the first place?

Greatest Hits: Hello Kitty and the Culture of Cute

PopStuff is addicted to coffee. This stimulant seems to have a stranglehold on humanity, and an entire culture has sprung up around it. Where does coffee actually come from, and why is our love affair with it so solid?

Greatest Hits: PopStuff's Cuppa Joe

From Rosie to Bender and far beyond, robots have been a part of the media we consume for decades. Tracy and Holly talk about R2D2, Wall-E, Terminators and a host of other mechanical pals, trying to figure out why we love them so.

Greatest Hits: Robots in Pop Culture

" Marketers often depend on hype to foster interest in a product, but sometimes, the hype machine backfires. Tracy and Holly talk about the hype cycle and hash out how it applies to tech, movies, music and other consumables."

Greatest Hits: PopStuff Doesn’t Believe the Hype

Have you ever had a song stuck in your head? That’s an earworm, and it’s an extremely common phenomenon. Holly and Tracy wonder why our brains latch onto small pieces of information, how you get rid of them, and why it’s important to study this field.

Greatest Hits: Why is this PopStuff stuck in my head?

Hipster. The very word makes people sneer. Why are hipsters viewed with such disdain? And what makes a person a hipster, anyway? Tracy and Holly examine the history of the word “hipster,” as well as the various definitions of what a hipster is.

Greatest Hits: PopStuff Isn't Cool Enough to Be a Hipster

Bon appétit! There are more cooking shows on television than ever before, but it seems fewer and fewer people are actually prepping their own food. Has cooking become a spectator sport? Listen in to learn more.

Greatest Hits: Cooking With PopStuff

We all know the Internet is awash with garbage, but there are also some hilarious and creative gems floating around the ether. When Tracy and Holly separate the wheat from the chaff, what Web memes and other delights do they fall in love with?

Greatest Hits: Internet, You So Crazy

Love them or hate them, weddings are a part of our lives. But why are they so expensive, and why does everyone feel entitled to judge everyone else’s nuptials?

Greatest Hits: Weddings

Tracy and Holly are a little late to the “My Little Pony: Friendship is Magic” party, but now that they’ve started watching the show, they totally see the appeal. Tracy may even be a pegasister. But what makes the ponies so popular with male viewers?

Greatest Hits: My Little Brony

Running continues to grow in popularity, but are all runners happy about that? Holly and Tracy talk about their experiences at races, their training, their gear and yes, their injuries, all while debating the merits of this hobby/sport/fitness regimen.

Greatest Hits: The Culture of Running

One’s a wisecracking rabbit and the other’s a giggling mouse. Both have devoted fans. How did these famous animated rodents get their starts and nestle into their niches, and why has only one reached juggernaut status?

Greatest Hits: Bugs vs. Mickey

Want to know more about the early days of the video game industry? Wondering how Hello Kitty became so popular? Join Tracy and Holly as they explore the science behind pop culture in PopStuff, a podcast by HowStuffWorks.com.

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