Create a Multi-boot USB Stick with MultiSystem

Create a Multi-boot USB Stick with MultiSystem: "Thanks to tools like Unetbootin and Ubuntu's Startup Disk Creator, creating a bootable USB stick with your favorite Linux distro has never been easier. But both of these utilities have one tiny shortcoming: they allow you to install only one distro on a USB stick. Enter MultiSystem, a nifty tool that can squeeze several distros on to a single USB stick. Not only that, MultiSystem lets you add a persistent storage for each distro, and the tool automatically generates a boot menu with a few handy options."