So you technically don't HAVE to have this. But if you're a coffee lover, it's a great thing to get! We love having a little whipped milk on top of our coffee in the morning to make it feel more coffee shop-ish. We've had an espresso machine in the past with the frothing wand thing on the side. But honestly, I just prefer brewed coffee from a pot, not espresso, every morning. So this is a perfect way to have that little bit of frothed milk on your regular cup of coffee! :) You can pick one up on amazon, (if you've got a package headed your way soon) or in Bangkok at IKEA next time you're in Thailand!