For devs not familiar with jQuery (and on the off-chance that you'll need no-conflicts mode at some point), you might even avoid the dollar sign.
jQuery(document).ready(function(){});
jQuery(document).ready(function(){});
Using $(function(){}); serves as a nice warning to this effect.
jQuery(document).ready(function($){}); (function($, window, undefined) {
$(document).ready({
// etc.
});
}(jQuery, window);