I'll be adding a lot of these; I especially like the "what was I doing..." ones. To continue with the sharing:

    up = !git pull --prune $@ && git submodule update --recursive
    cm = !git add -A && git commit
    save = !git add -A && git commit -m 'SAVEPOINT'
    undo = reset HEAD~1 --mixed
    amend = commit -a --amend
    # Removes branches deleted from remote repo
    bclean = "!f() { git branch --merged ${1-master} | grep -v " ${1-master}$" | xargs git branch -d; }; f"
    # Leave current branch & do some cleanup
    bdone = "!f() { git checkout ${1-master} && git up && git bclean ${1-master}; }; f"