Optimize asset delivery on Apache servers. I typically just past this into the .htaccess file either in the root of the site, or the root of my /assets directory.

gistfile1.txt

#Gzip
<ifModule mod_deflate.c>
    AddOutputFilterByType DEFLATE text/text
    AddOutputFilterByType DEFLATE text/html
    AddOutputFilterByType DEFLATE text/plain
    AddOutputFilterByType DEFLATE text/xml
    AddOutputFilterByType DEFLATE text/css
    AddOutputFilterByType DEFLATE application/x-javascript
    AddOutputFilterByType DEFLATE application/javascript
    AddOutputFilterByType DEFLATE text/javascript
    AddOutputFilterByType DEFLATE image/x-icon
    AddOutputFilterByType DEFLATE image/svg+xml
</ifModule>
#End Gzip

# RFC says only cache for 1 year
ExpiresActive On
ExpiresDefault "access plus 1 year"

# Set Expires headers
<ifModule mod_headers.c>
    <filesMatch "\\.(ico|pdf|flv|jpg|jpeg|png|gif|swf|svg)$">
        Header set Cache-Control "max-age=2592000, public"
    </filesMatch>
    <filesMatch "\\.(css)$">
        Header set Cache-Control "max-age=604800, public"
    </filesMatch>
    <filesMatch "\\.(js)$">
        Header set Cache-Control "max-age=216000, private"
    </filesMatch>
    <filesMatch "\\.(xml|txt)$">
        Header set Cache-Control "max-age=216000, public, must-revalidate"
    </filesMatch>
    <filesMatch "\\.(html|htm|php)$">
        Header set Cache-Control "max-age=1, private, must-revalidate"
    </filesMatch>
</ifModule>