Don't include CSS files in package 

Use less files directly so they can be modified in development without the extra step of compilation.

When in production, perhaps use compressor::

    {% if DEBUG %}
        <link rel="stylesheet/less" type="text/css" href="{{ STATIC_URL }}less/styles.less"> 
        <script src="{{ STATIC_URL }}js/less-1.3.0.min.js"></script>
    {% else %}
        <!-- use django compressor and lessc to compile and compress less files in production -->
        {% compress css %}
        <link rel="stylesheet" type="text/less" href="{{ STATIC_URL }}less/styles.less">
        {% endcompress %}
    {% endif %}

See https://groups.google.com/forum/?fromgroups#!topic/django-oscar/3qlQV1qXCGA