A fairly unknown feature of git is the concept of "working trees". In a nutshell, it allows you to have branches checked out as regular folders. This seemingly simple feature can be a game changer when working between multiple in-progress branches. Forget about stashing, or cross-branch dependency changes nightmares. You can even keep working while another branch is being built or tested! After this talk, you will know how to create and manage worktrees, how to get around their caveats, and the best way to make them the new base of your regular workflow.