ComboInk's headline offer is 10% off when you spend $75 or more, making it the best choice for customers building a substantial order. However, the site has several other percentage and flat rate deals worth comparing depending on what you're buying and how much you plan to spend.
Small orders under $50: If you're picking up just a single cartridge or cable, you'll get the best savings by shopping specific deals. The HP 10 replacement black ink cartridge at $7.99 and HP 11 cyan cartridge at $7.99 are fixed price offers, as are accessories like the USB printer cable for $3.49 or the USB device cable for $3.99. Free shipping kicks in at $50, so if you can add another item or two to reach that threshold, you'll cover your shipping costs too.
Orders between $50 and $65: The 8% off any order deal applies here, giving you a discount on everything in your basket with no minimum spend threshold. On a $55 order, this saves you $4.40. You also qualify for free shipping once you hit $50, which adds value to any purchase in this range.
Orders of $65 to $75: You're at a decision point. The 10% off on orders over $65 saves significantly more than the 8% option, so take that offer if your basket crosses the $65 line. On a $70 order, this gives you $7 off versus just $5.60 from the 8% deal.
Orders over $75: The headline 10% off when you spend $75 or more is your best option. On a $100 order, you save $10. This also qualifies for free shipping if you haven't already reached that threshold.
Inks only: If you're buying ink cartridges specifically, two separate 9% off inks only deals appear on the page. These beat the general 8% off any order option but will fall short of the 10% deals once your spend crosses $65 or $75.
Combo packs: There's an 8% off combo packs offer that applies to bundled products, though you should still compare this against the percentage deals above based on your final basket total.
Remember that only one offer applies at checkout, so calculate which discount produces the largest saving on your specific basket before you buy.