Today, I stumbled upon a super-simple, easy, short way to get the title of a weblog:

{exp:weblog:weblog_name}

does the trick, as opposed to the long and ugly:

{exp:weblog:info weblog="{master_weblog_name}"}
    {blog_title}
{/exp:/weblog:info}

Another small nicety: if you upload an image to your site in the following format:

name-of-the-picture300x200.png

The resulting img tag comes with the width and the height filled in:

<img 
    src="{filedir_1}name-of-the-picture300x200.png" 
    width="300" height="200" />

The width and the height are filled in regardless of the filename format.