So you don't want to take your blog private, but you don't want ALL of your posts visible to just anyone? Follow these steps to set up a private, archived blog still visible to you and/or those you allow.
This site is amazing and explains it all. This is where I got the directions for this picture tutorial. Remember, you have to reset your template to Minima. Not Minima Lefty. Just Minima.
{click to enlarge}
It's not allowing the full code to post from screen shot 5, so you will need to either type it in EXACTLY or click here and search for 'Blog Posts in the Center'. The red code is what you will need to copy and paste.
Are you ambitious enough to make your very own background? Do you have the time? Do you have the love of designing? I'm not sure many people do. I just hate having the same background as anyone else...so I do my own!
Here's a short tutorial to help you. (It's not exactly basic, you'll need a little better-than-average knowledge of the internet, but if you have the desire to learn, I'm sure you'll be able to figure it out!)