In case you aren't familiar with the free Craftsy mini-courses, here are thoughts on some of my favorites. I have enrolled in several of the free classes and they are awesome, All courses have the same top-notch production values with lots of content.
I recently made two of the zippered pouches. Kristin Link has shared suggested measurements for three additional pouches sizes at Sew Mama Sew. I made the original pattern first and then the smallest size to match. The small one should be great for keeping earbuds safe in my purse.