Looking around at some WA members websites, I've seen a good number of them that have left the Website Title (Header image / logo) as plain text. In the majority of Wordpress themes it is possible to change the header image.
If you don't already know, there are several places online where it is possible to create a website logo for free - my favourite tool of choice being Cool Text at http://cooltext.com/ .
Within their tool you can choose from a variety of fonts (probably a couple of hundred different ones), and add basic images (although their image library is fairly basic, clipart type icons)
Here is a simple example I knocked up in less than 5 minutes firstly showing the unmodified title; then another with a simple Cool Text logo.
The standard wordpress title;
Below, with a Cool Text logo added;
I am sure you will agree that creating a better header for your website is something that should be considered -I think it gives the website a much more professional look.
Hopefully this article will help some of the newer WA members when they are creating their affiliate websites in the future. If you have any problems in using it let me know and I will try and help out.
If you know of any other places where it is possible to produce similar logos, please share below.