Ah, ok. Wondered why/how my formatting could cause such confusion when I go to the trouble of making it as clear as possible. As for how I do it, I mainly use the CK text editor, which is the second button to the right:
If you click the Edit CK button instead of the Edit Text button (which is just a plain text editor), you'll have a lot more editing features at your disposal, which gives you a lot more control over the text. The other advanced editors give you even more features, but I find the CKeditor more than adequate to the task.