Alright so obviously you've already decided on your new blog name and purchased your brand spankin new blog domain. Yay you!!! But now what do you do????
First, you want to forward your old domain to your new domain. Using my blog as an example, that means if you enter armyeverafter.com into the search engine, you'll still end up at elizabeth-loves.com. The way you do this is pretty cut and dry.
These are directions for GoDaddy but I believe the general idea will still be the same.