Not all of it was uninformed -- I have had inspiration along the way.
Especially from the new craze, Zentangle...
www.zentangle.com/ is the official site
another site with great information on various patterns is
tanglepatterns.com it is literally a clearing house of patterns.
Now just so you understand - the whole idea of Zentangles is a few simple marks repeated to create seemingly complex designs. And it is doodling with the intent to have a quiet, meditative moment.
And really it is doodling. So don't think you have to get a book. Of work on square paper like they do. You can doodle with purpose and have fun! THAT is the point.
Not to mention that I find it a great way to think about repetitive patterns and how they are created to then recreate them in thread...
If you have any questions or I can assist in some way. Please let me know.