For Canon PIXMA PRO-100, PRO-100S, Canon PIXUS PRO-100
Used this coupon:
46066 or 56062
Plus any filler item more than $0.01. I got these for $1.66 to get it to $96.65 before sales tax.
I rarely see this ink go on sale since Staples usually doesn’t allow you to apply these coupons to ink. So anything close to $100 has been a good deal in the past.
You can stack with the coupon:
My cart: 2 x $249.98 – $30.01 = $219.97 + 40% back