It's worth noting that the Sidekick is adhesive and sticks on permanently to a hard-back notebook, but is fairly cheap compared to the Quivers, which can move notebooks by need. The spine-mounted ones are great if you have a favorite pen, whereas the Double-Pen Quiver mounts on the side of a notebook, so the cover must have a certain size/thickness to accommodate.
faxyHey @faxy@motocoder@robert.harris and everyone who voted in this poll so far.
I can definitely reach out regarding the popular options from the poll, thanks for voting!