This type of doodle could be done with a stencil when you first begin doodling to help get some great shapes onto your paper, then doodle/zentangle into flower petals or just colour. Or zentangle in colour
I think most people have seen the "use a bread clip as a cord label" tip. Here's how to make your own Bread Clips because not every loaf comes with a clip.Such a simple idea! And, you can customize the size for thicker cords.