First Deal so go easy :p
I'm sure most people know what Grooveshark is but for those who don't:
"Grooveshark, the internationally-available online music search engine and music recommendation web software application, allowing users to search for and stream music, for free, that can be played immediately or added to a playlist"
"Grooveshark offers a subscription service called VIP for a monthly fee of $3.00 USD, or $30 USD for one year, until December 1 2010. After 1 December 2010 the price increases to $6/month (or $60/year) for Grooveshark VIP, and $9/month ($90/year) for Grooveshark Anywhere. VIP services provides additional functions, most notable is the removal of banner ads along the right side of the Grooveshark applet. The VIP service also includes smaller enhancements, such as the ability to use fullscreen mode, crossfading of songs, interface personalization, scrobble songs to last.fm pages, and more. VIP services also offers access to their mobile application, currently available for Android, Palm, Nokia, and Blackberry devices. After 1 december, the support for mobile devices isn't available anymore for Grooveshark VIP users, only for Grooveshark Anywhere users. In the past, an iPhone app was available, but Apple removed the app from the iTunes App Store, due to a lawsuit between Grooveshark LLC and Universal Music Group. A Grooveshark application written for Adobe AIR, called Grooveshark desktop, is also available for Linux, PC, and Mac."
If you buy one of their TShirts (some styles out of stock but others have some left) you get a free Grooveshark Anywhere Subscription for a year as well as being able to renew at the cheaper (what it used to be) rate of $30/£19 rather than $90.
You can get this even cheaper if you don't actually want the TShirt or have relatives in the US as you could get it delivered somewhere in America and save $8.50 worth of shipping.
This is excellent for people who have an Android phone (such as the Orange San Francisco- like me) and want to able to stream music anywhere. I prefer this to Spotify as its cheaper and there are no music restrictions on different regions.