git worktree lets you check out multiple branches at once

Instead of git stash → git checkout → do work → git checkout - → git stash pop, you can use worktrees:

# Check out a branch in a new directory alongside your main repo
git worktree add ../my-repo-hotfix hotfix/urgent-fix

# List all active worktrees
git worktree list

# Remove when done
git worktree remove ../my-repo-hotfix

Each worktree shares the same .git history but has its own working directory and index. Great for reviewing a PR while keeping your current work untouched.