Minimal theme collection.liquid with sidebar on the right - 3 products per row.

gistfile1.html

<div id="collection">

{% paginate collection.products by 18 %}

  <div class="row">

    <div class="span9 products">
          
      <div class="row">

        <!-- Begin breadcrumb -->
        <div class="breadcrumb clearfix">
          <span itemscope itemtype="http://data-vocabulary.org/Breadcrumb"><a href="{{ shop.url }}" title="{{ shop.name | escape }}" itemprop="url"><span itemprop="title">Home</span></a></span> 
          <span class="arrow-space">&#62;</span>
          <span itemscope itemtype="http://data-vocabulary.org/Breadcrumb"><a href="{{ collection.url }}" title="{{ collection.title | escape }}" itemprop="url"><span itemprop="title">{{ collection.title }}</span></a></span>       

          {% if current_tags %}
          {% for tag in current_tags %}
          <span class="arrow-space">&#62;</span>
          <span itemscope itemtype="http://data-vocabulary.org/Breadcrumb"><a href="/collections/{% if collection.handle != blank %}{{ collection.handle }}{% else %}all{% endif %}/{{ tag | handleize }}" title="{{ tag | escape }}" itemprop="url"><span itemprop="title">{{ tag }}</span></a></span>       
          {% endfor %}
          {% endif %}

          {% if paginate.pages != 0 %}      
          <span class="arrow-space">&#62;</span> <strong>Page {{ paginate.current_page }} of {{ paginate.pages }}</strong>
          {% endif %}
        </div>
        <!-- End breadcrumb -->

        <!-- Begin sort collection -->
        <div class="clearfix">
          <h1 class="collection-title">{{ collection.title }}</h1>
          {% if settings.collection_tags %}
          {% capture col_url%}{% if collection.url.size == 0 %}/collections/all{%else%}{{collection.url}}{%endif%}{%endcapture%}
          {% if collection.all_tags.size > 0 %}
          <div class="browse-tags">
          <label>Browse:</label>
          <select name="collection_tags" id="collection_tags" class="loc_on_change">
          <option value="{{ col_url }}">All items</option>
          {% for tag in collection.all_tags %}
          <option value="{{col_url}}/{{ tag | handle }}"{% if current_tags contains tag %} selected="selected"{%endif%}>{{ tag }}</option>
          {% endfor %}
          </select>
          </div>
          {% endif %}
          {% endif %}
        </div>
        <!-- End sort collection -->

        <!-- Begin collection description -->
        {% if collection.description != "" %}
        {{ collection.description }}
        {% endif %}
        <!-- End collection description -->

        <!-- Begin no products -->
        {% if collection.products.size == 0 %}
        <div class="row">
          <div class="expanded-message">
            <p>No products found</p>
          </div>
        </div>
        {% endif %}

      </div>

      <div class="row">

        {% for product in collection.products limit: settings.pagination_limit %}

        {% capture collection_handle %}{{ collection.handle }}{% endcapture %}
        {% capture url %}{% if collection_handle != "" %}/collections/{{ collection.handle }}{{ product.url }}{% else %}{{ product.url }}{% endif %}{% endcapture %}
        <div class="product span3 {% cycle 'class-product-loop': 'inner-left', '', 'inner-right' %}">

          {% if product.price_min < product.compare_at_price_min %}
          {% if settings.show_sale_circle %}
          <span class="circle sale">Sale</span>
          {% endif %}
          {% endif %}

          <div class="image">
            <a href="{{ url }}">
              <img src="{{ product.featured_image | product_img_url: 'large' }}" alt="{{ product.title | escape  }}" />
            </a>
          </div>

          <div class="details">
            <a href="{{ url }}" class="clearfix">
              <h4 class="title">{{ product.title }}</h4>       
              {% if settings.product_vendor %}
              <span class="vendor">{{ product.vendor }}</span>
              {% endif %}
              <span class="price">
              {% if product.available %}
              {% if product.compare_at_price_max > product.price %}
              <del>{{ product.compare_at_price | money }}</del>
              {% endif %}
              {% if product.price_varies %}
              <small><em>from</em></small>
              {% endif %}
              {{ product.price | money }}
              {% else %}
              {{ product.price | money }} Sold Out
              {% endif %}
              </span>
            </a>        
          </div>

        </div>

      {% cycle 'clear-product-loop': '', '', '<div style="clear:both;"></div>' %}

      {% endfor %}     
    
      </div>
        
    </div><!-- .products -->

    <div class="span3">
    {{ '219x1000.gif' | asset_url | img_tag }}
    </div>
    
    {% include 'pagination' %}

  </div><!-- .row -->

{% endpaginate %}

</div><!-- #collection -->