Deleting your Blog is a drastic step - especially in light of the many contra-indications, such as Spammers. 

 

There are ways to avoid the 'final step' of deletion. Even if you know you will never re-use your blog, simply make it a 'Stub Blog' , with no posts, or information, and 'leave' it. It doesn't cost you anything, but prevents your Blog URL falling into the 'wrong' hands.

 

It's just NOT recommended. 

 

But, if you have considered it, and we can't change your mind, clear all your posts and personal information, then go to the bottom of your 'Settings - Basic' screen (that's the default screen for Settings), and you'll see the 'Delete Your Blog' option. Bye!