Running a blog is one of the very fancy way of sharing and exchanging ideas to the world using the internet. However, it is not advisable to play around with your blog online especially for developers and designers because of several security reasons and also you might break down the blog in the process.

Anywayz, you can always instead have a local version of your blog running on your local machine off the internet where you can test several plugins and themes before uploading it. Woow! that sounds a great idea BUT probably, you might be aware of this already. What of having your blog running on your portable device (usb, ipod, etc) so that you can test anything on your blog from anywhere, any computer etc. Well, you can check out how to run a local webserver on your portable device at How to install Wordpress on a USB stick