If you have the time and resources, what would be the most effective way to increase your salary as a full-time programmer, outside of just doing your job? 

By "salary" here, I mean salary (adjusted for location cost-of-living) coming from a single programming job. 


Question: Sharepoint 2010. Add custom background and frame for content editor webpart
Answer: You tagged your question with Sharepoint 2007 and 2010, the content editors are different though. This answer is for SP2010:

You can just add CSS to a custom CSS file. background-image for .ms-rte-layoutzone-inner-editable will do the image trick. If you want to add a "frame" as in border, you can add border attributes to .ms-rte-layoutzone-outer and make it e.g. red.

An example for a background image:

.ms-rte-layoutzone-inner-editable {
    border-image: url(/PublishingImages/Mylogo.gif);
}


But please do your users a favor and don't include anything blinking or distracting to the content editor's background - if you wanna go for some very light grey or something like that it's OK.

For MOSS2007 you need to check the specific styles you can override.