I tried several ways to store my copics, but wasnt happy with anything i tried.
I went to Bed, Bath and Beyond one day looking for something else and came across clear plastic containers that can be stack on top of each other.
They are wine bottle holders. $7.99 ea.
Each holder holds 35 copics.
I can't insert a picture but you can look for
Interdesign® Fridge Binz™ Stackable Wine Rack
I have learned one thing from our ancient Greek ancestors- PAN METRON ARISTON- "Nothing In Excess"