I have exciting news! Stampin' Up! just introduced their own line of craft room storage solutions!! Coming on April 1st, you can order ink pad holders, marker holders, storage for Stampin' Blends or ink refills and more! And it's all totally customizable to your crafting space and your storage needs!
Here is a Configuration Chart from Stampin' Up! to help you decide how many storage pieces you need. Download it here - CONFIGURATION CHART