My 12/16 late afternoon order will be delivered via UPS on Thursday.  That’s pretty darned fast.  Normally you get a promo code or free shipping, not both; my laser cartridges were $12 each (I used to shop Staples – shudder).
Get $10 off your $20 ink order plus Free Shipping with this ComboInk promotion. ComboInk guarantees its cartridges for 365 days, but I’ve never had to test their warranty and I’ve been using them for years.