Simple Vagrant aliases:

  alias vup='vagrant up'
  alias vdn='vagrant halt'
  alias sv='ssh vagrant'

Some apt-get ones:

  alias sapu='sudo apt-get update'
  alias sapi='sudo apt-get install'
  alias sapr='sudo apt-get remove'

When I'm in Windows I use Cygwin (as a dropdown terminal[1]), these are useful:

  alias tk='taskkill -f -im'
  alias ping='PING'
  alias flush='ipconfig /flushdns'

[1]: http://blog.elamperti.com/2014/11/dropdown-cygwin-terminal-i...