Chunks

Seriously, Long before there was a widget, we use "chunk".

Chunks also avaliable as shortcode and php tags, a better why to include static files to your post or your template design.

Ideas: Google analytic code, Twitter API code, etc. or anything that you like to embed to your themes instead your Databases.

Since 1.1.7 Chunks was stored inside your /upload directory, not in child theme directory