Entire Pen Collection | Favorite Pen Cases by Category

Why do I have so many pens? How do I store and keep track of them all and organized? What are my favorite storage cases? Find out & see everything!
Lihit Double Pen Case Large (Green): http://www.amazon.com/Lihit-Lab-doubl...
Kokuyo C2 Tray Pencil Case (Navy/Light Blue): http://www.jetpens.com/Kokuyo-C2-Tray...
NeoCritz Transformer Pencil Case (Dark Blue/Light Blue) : http://www.jetpens.com/Lihit-Lab-Teff...
Cubix Round Zip Pen Case (Sky Blue): http://www.jetpens.com/Cubix-Round-Zi...
Lihit Pen Case (Long): http://www.amazon.com/LIHIT-LAB-Case-...
Lihit Teffa Pen Case (Black): http://www.jetpens.com/Lihit-Lab-Teff...
Copic 72 Wallet Case (I definitely didn't pay this much, but this is the exact one): http://www.amazon.com/Copic-Markers-P...