I want cheap and refills. Reuse should be cheaper than buying new everything. Pricing today is backwards because it externalizes the costs of throwaway everything. We collectively pay the price of cheap, unrepairable, unrefillable, un-re-usable goods.
Using a fountain pen, refilled from an ink bottle, is not too expensive. Buy a $20-30 Lamy Safari as a good first pen (the shape of the grip helps to ensure you hold it correctly). Unless you're writing novels by hand, a smaller ink bottle will last a long time. I've not had to buy new pens or new ink for a couple years (I'll need to buy more ink soon). I keep a couple ballpoint pens around for random things where that's easier (what they can write on, not all papers take fountain pen inks very well). I don't buy those, they're usually the freebies given away by car dealerships, doctors, banks, whatever. I use them until they stop writing.
Forget pens. What about the other day-to-day consumer goods? Toiletries, food products?