Maybe you didn't know that your local Walgreens can refill inkjet cartridges. Maybe a lot of people don't know that. Which would explain why the pharmacy chain is offering free fill-ups Wednesday.
Details include one cartridge per customer, black or color, usually done while you wait at the photo counter. Regular prices are $10 a refill for black ink and $15 for color.
Walgreens Offers Free Printer Ink Refills on Wed. [ExtremeTech]
