Need to log in to a lot of different systems but hate setting your environment up each time? Keeeeeeeep adding your ssh key whenever you log in the first time? Or worse, regret adding it the previous time you logged in over and over?
Feel like its dirty to put your personal setup in the company wide puppetmaster?

I use this.

echo $( wget -q -O - http://YOUR_URL_HERE/homedir.pp; echo "class {'homedir::jan': gid => '10001',}" ) | puppet apply

Aahhhhhh, one copy-paste-able to rule them all.