I just registered the domain chanad.tk. Why? Well it's a bit annoying when someone asks me what the URL of the blog is and I have to give them the full long address: http://chanadbahraini.blogspot.com. So now you need only type in http://chanad.tk to get here.
The other reason I registered the domain is because it's FREE. I don't think I get to keep the domain forever, and I don't think it's officially under my name, and there are probably a million other catches... but it's FREE. So if you want to get your own free .TK domain then sign up here.