Stashing

Putting work aside for a moment.

Save and restore

git stash takes your uncommitted changes, saves them and leaves a clean working tree. git stash pop puts them back when you return.

git stash list shows what you have parked, oldest last.
Add -u to include untracked files, which are otherwise left behind.

When to use it

Stashing suits a quick interruption: a hotfix on another branch, or pulling when your tree is dirty. For anything longer, a commit on a branch is safer than a stash you will forget.