One hack I can recommend is for dividers for pens. I have a wooden chest often called a Machinist's Chest as they are often used to hold the small, delicate tools used by machinists, to store my fountain pens. Instead of plastic dividers in the drawers, I took stiff, good paper and folded it accordion style and put the pens into the valley folds.
I like this soooo much better than plastic. They are easily replaced, don't damage the pens, and you can even label what goes into each valley.
The machinist chests can be very expensive. I ran across one at Costco that was quite reasonable, relatively. It's called the TRINITY TWM-3501 Wood Toolbox if you can find it somewhere else. The drawers are fine for fountain pens, but several are not quite long enough for dip pen holders.
If money was no object, my dream cabinet is the Tennsco 2085 steel letter-size thirty-drawer cabinet. Perfect size to store my large steel pen collection, plus different papers, pens, etc... It's also over $500 delivered. It's a commercial-grade cabinet that would way outlast me.
Andrew