There are no magic buttons

Laddie and anyone else who may have trouble posting, the first time we left a message on the blog it was simple, we just went to the post button. After that, we too thought we couldn't post. We finally found out that we have to "sign in" every time we want to post. As you have found out you can add a comment to someone's blog without signing in, however, in a way you are signing in because you have to use your user name and password. The sign in tab appears at the right top of the blog page. After you sign in you will see the option for "new post". Select new post and another screen appears where you post the title and message which we are all so eager to read.

You can continue posting or making comments without having to sign in again, (post button appears in the upper right on the blog page) until you close the blog or turn off your computer.

Hope this helps you post.