git tidy - cleans up your remote and local branches

.gitconfig

[alias]
  tidy = "!git remote prune origin 2>/dev/null; echo \"$(git branch -vv | grep origin | tr '[]*?+' ' ')\" | egrep -v \"$(git branch -r | awk '{print $1}')\" | awk '{print $1}' | xargs git branch -d 2>/dev/null"
  refresh = "!git checkout master && git fetch && git pull --rebase && git tidy"
  t = "!git tidy"
  r = "!git refresh"