I want to use HAML for my templates. I already have it installed; all I need to do now is convert the scaffolded ERB layout.
html2haml app/views/layouts/application.html.erb app/views/layouts/application.haml
One other thing I like to do is have the <title> and topmost <h1> tags have the same content. This is generally considered (by the SEO black-magicians)