Theres also a "shell" called "ssh-agent".. the agent asks you for your password to your keys, and after that it will never ask you for the password again.. well.. unless you teminate the "shell". You should also check out how to use keys to login. These can be with or without passwords. if you want a faster way then typing "ssh email@example.com
" you can alyaws use alias:
$ alias jump="ssh myname@mydomain"