Sublime Text snippet to quickly insert <%= =>. Use by typing % and then hitting tab. For OS X, save the file to: /Users/yourname/Library/Application Support/Sublime Text 2/Packages/User

percentage-ruby-wrapper.sublime-snippet

<snippet>
  <content><![CDATA[
<%= $1 %>
]]></content>
	<!-- Optional: Set a tabTrigger to define how to trigger the snippet -->
	<tabTrigger>%</tabTrigger>
	<!-- Optional: Set a scope to limit where the snippet will trigger -->
	<scope>source.ruby, source.ruby.rails, text.html.ruby</scope>
</snippet>