How to append 'Continue reading…' link within the last paragraph of the Excerpt
I'm a total novice with Craft/Twig and I was hoping for some sort of simple and neat append function in Twig!

However, I've got close to a working solution using CSS, by overriding the Extract's &lt;p&gt; tags' usual behavior with display: inline, and enclosing the 'Continue reading…' in a &lt;span&gt; tag.

Edit:
The following (including some additional logic for a 'Summary' field) seems to work well…

&lt;div class="excerpts"&gt;

    {% if entry.summary %}
        {{ entry.summary }}
    {% else %}
        {{ entry.body.page(1) }}
    {% endif %}

    {% if entry.body.getTotalPages() &gt; 1 or entry.summary %}
        &lt;span&gt;&lt;a href="{{ entry.url }}" rel="nofollow"&gt;Continue reading…&lt;/a&gt;&lt;/span&gt;         
    {% endif %}

&lt;/div&gt;


…and…

.excerpts p:last-of-type { display: inline; }