Amen.

My bashrc has so many of these, and they're probably among the most common commands I use daily!:

    alias gs="git status"
    alias gb="git branch"
    alias grh="git reset --hard"
    alias gcdf="git clean -df"
    alias gf="git fetch"
    alias gp="git pull"
    alias gdom="git diff origin/master"
    alias gdomn="git diff --name-status origin/master"
    alias gd="git diff"
    alias gl="git log"
    alias glm="git log --author <my_name>"
    alias gc="git checkout"
    alias gcm="git checkout master"