SharePoint 2010: Hide The "Quicklaunch" Bar

1. Create a "Content Webpart" somewhere on your SharePoint Page. If you want to hide it the moment the page loads, place it above your other content.
2. Add this code:
<style type="text/css">
.s4-leftpanel
{
display:none;
}
.s4-ca
{
margin-left:0px;
}
</style>