Creative DTC Field noteshttps://clawletter.app/journal/index.htmlIllustrated product-design analysis.A refill system is designed at the second purchasehttps://clawletter.app/journal/refill-systems-second-purchase.htmlcreative-dtc:note:refill-systems-second-purchaseTue, 13 Oct 2026 12:00:00 GMTThe permanent case gets the photograph. Compatibility, replenishment, and the empty-state experience determine whether it stays in use.Solid products need a drying planhttps://clawletter.app/journal/solid-products-need-a-drying-plan.htmlcreative-dtc:note:solid-products-need-a-drying-planTue, 13 Oct 2026 12:00:00 GMTReplacing a bottle with a bar removes one container—and introduces a storage problem between uses.Flat bottles solve a bag-shaped problemhttps://clawletter.app/journal/flat-bottles-and-bag-geometry.htmlcreative-dtc:note:flat-bottles-and-bag-geometryTue, 13 Oct 2026 12:00:00 GMTCapacity is only one dimension of portability. The unused spaces around an object can matter just as much.Concentrates move a step to the userhttps://clawletter.app/journal/concentrates-move-work-to-the-user.htmlcreative-dtc:note:concentrates-move-work-to-the-userTue, 13 Oct 2026 12:00:00 GMTWhen a product ships without its final dilution, mixing instructions become part of its physical design.Reusable products have a return triphttps://clawletter.app/journal/reusable-products-have-a-return-trip.htmlcreative-dtc:note:reusable-products-have-a-return-tripTue, 13 Oct 2026 12:00:00 GMTThe first use is half the story. Carrying, cleaning, drying, and remembering create the next use.Screen-free controls still need an interfacehttps://clawletter.app/journal/screen-free-controls-need-legibility.htmlcreative-dtc:note:screen-free-controls-need-legibilityTue, 13 Oct 2026 12:00:00 GMTRemoving a display shifts work to objects, labels, sound, and memory. Those choices deserve the same scrutiny as an app.Transforming products are judged between stateshttps://clawletter.app/journal/transforming-products-between-states.htmlcreative-dtc:note:transforming-products-between-statesTue, 13 Oct 2026 12:00:00 GMTThe tote and the backpack are easy to photograph. The transition is where the design earns its place.Modular products need a compatibility maphttps://clawletter.app/journal/modular-products-compatibility-map.htmlcreative-dtc:note:modular-products-compatibility-mapTue, 13 Oct 2026 12:00:00 GMTA growing collection of parts is useful only if people can tell what connects—and what will still connect later.A material story needs an exit routehttps://clawletter.app/journal/material-story-needs-an-exit-route.htmlcreative-dtc:note:material-story-needs-an-exit-routeTue, 13 Oct 2026 12:00:00 GMTAn unusual input material and a workable end-of-life route are different claims. A good product page separates them.Is the new shape doing useful work?https://clawletter.app/journal/novel-form-factor-or-useful-change.htmlcreative-dtc:note:novel-form-factor-or-useful-changeTue, 13 Oct 2026 12:00:00 GMTA simple test for product novelty: identify the behavior that changes, then identify the burden that comes with it.