There already is a solution and has been for a long time. No need to invent a new one. In fact the gov’t should ban all single use pens, none available at banks, or businesses, none used for marketing and company advertising, ONLY have refillable pens and metal cartridges available, even for marketing and at use in businesses (attach them to a base at the counter so they are not accidently taken.) Something like 1.6 billion pens are thrown away each year in the USA alone! Buy a good pen (ranges from $15 to $40 for a good one) that you keep forever. It comes with a metal cartridge (usually brass or steel) already filled with ink, enough to last from 3 - 5 yrs. or longer. Because it is metal air can’t permeate to dry out the ink before it is used up. A new cartridge costs about $7 to $10 which again lasts for about 3-5 yrs. The metal cartridges are recyclable because they are metal. It is not only ecological, not wasteful (not only in single use pollution but also in manufacturing packaging and transportation pollution) but personally financially it saves a person money. Costs: Single use pens: Even at $2.50 for 12 Run out or dry out quickly, or careless and lose them, so purchase at least 10 packages per year = 25.00 x 4 yrs. = $100.00 Buy one good pen keep forever (I still have mine from 1995) cost me $10 back then (that’s less than 50 cents per year so far) Buying a good pen means you will take more care in keeping it and less chance of losing it because you care if you lose it. Refillable pen: $20. But let’s calculate as if you only have it for 4 yrs. and it already has an ink cartridge in it So: over 4 years it costs a total of $20. And the next 4 yrs. (because you still have your pen) and have only replaced e cartridge it will cost you only maximum $10 while the stick pens will cost you another $100.00 So in 8 years for single use pens you will spend anywhere from $100 - $200 depending on how many you buy, how much you use them, how many you lose, how many dry out. And in 8 years for a good refillable pen you will have spent about $30 - $50 depending on the price of the original pen.