How do I change my Minecraft username?

To change your Minecraft username, log in to your Mojang account and navigate to your profile settings. From there, you can click on the "change" option next to your current username and enter your desired new username. Keep in mind that there is a 30-day waiting period before you can change your username again, so choose wisely. It's also important to note that changing your username will not affect your saved worlds or inventory in Minecraft.