Recently while teaching a workshop to a group of Power Users I was asked how could somebody continue to use the lab environment that was made available to them. Sadly that lab environment was scheduled to be destroyed midnight of the last day of the course.
But a PFE I was working with had a great answer to the problem and I wanted to share this with you. Microsoft provides lab environments where you can try different functions for 90 mins at a time
TechNet Virtual Labs – SharePoint Server 2010 http://technet.microsoft.com/en-us/virtuallabs/bb512933
TechNet Virtual Labs – All technologies http://technet.microsoft.com/en-us/virtuallabs/default
If you want to stay on the cutting edge here are presentations for SharePoint Server 2013 http://technet.microsoft.com/en-US/sharepoint/fp123606