I Want a New Blog!

I am thinking of another blog to make. I want something original like the other bloggers do! They do have personal blogs, blogs about their kids and some are blogs about their hobbies, collection or career. I already have 3 blogs, about myself and anything under the sun, about my kids and about properties I am selling. The third one is not that active. I am not posting there anymore. I want to change it to something unique. I have to think and make a header about it first.