A 3D Clear Organizer Cube, in Steel, was one of my first purchases. I bought it as an extra organizer pocket for my first Large Cafe Bag.
Just as Dorayme, I find that little things are easier to locate quickly if in organized in Pouches.
But my o-rings are already full with things attached via lanyards.
Color coding and placing Small Pouches inside the 3D Clear Organizer Cube makes things easier to find and grab in a hurry.
However, the 3D Clear Organizer Cube make things tight in the Large Cafe Bag if the FJN is added.
Nevertheless, I got another one in UV, the 3D Clear Organizer Cube is a perfect addition to the Synapse and I suspect they will be the perfect bags within bags inside the Little Swifts.
I don't know if Swifts owners know that the Packing Cube Shoulder Bags fit perfectly inside the Swifts and work like a charm to add two inner zippered pocket.
I do not find it necessary, but the Packing Cube Shoulder Bags rings match the rings inside the main pocket of the Swifts easily linked together with a short Key Strap for each side.