Depend on jekyll-assets.
Activate jekyll-assets.
Move images into _assets.
Use compiled assets for feature images.
asset_path for the author bio
Use asset_path for _head metadata.
Shuffle Javascript resources into _assets.
Use {% javascript %} for great javascripts
Move Less sheets into _assets.

Use the .less.erb trick to reference assets from less styles.
Use the erb trick for ie.less.erb, too.
Move img/ images into _assets, too.
Include Less, uglifier and therubyracer for assets.
Use {% stylesheet %} for stylesheets.
Configure jekyll-assets to compress CSS and JS.
Delete the pre-compiled asset files.
Move fonts into _assets too.

That should be the last of it.
What were those still doing there?
I don't need these any more, either.
Right, favicons aren't assets.
Move asset publishing to an external script.