At Costco, this $100 HP Instant Ink code costs $80, a $20 discount on the credited balance. The code loads directly into an Instant Ink account, where plans run from $1.79 a month and unused pages carry over rather than expire. Delivery is via email.  Buy Now at Costco

This 5-pack of T502-compatible ink bottles for EcoTank printers is $19.43. It's a $3 savings. Name brand options for this amount of ink are over $50 elsewhere. Shipping is free for Prime members.  Buy Now at Amazon

Worth grabbing if you've got a Cosco 1SI30PGL stamp running dry, since a replacement pad keeps it usable without buying a new stamp, and it's $4.41 off the list price at $2.94. Buy Now at Amazon

Bakeries weighing ingredients on the fly will find the ScaleStick Cartridge handy for quick, accurate measurements without extra setup, and at $94 it's $82.67 off the $176.67 list price. Buy Now at Amazon

Running out of printer paper panic is one thing, but running out of black ink mid-print is worse, and this two-pack gives you backup without a second trip to the store, now $12 off the $38 list price at Walmart. Buy Now at Walmart

Anyone who regularly prints photos or documents at home will burn through ink fast, and this combo pack covers both the black and color cartridges at once for $65.67, about $20 off the $85.89 list price. Buy Now at Walmart

Keeping a spare set on hand saves you a trip mid-print-job, which matters most if you print often enough to run out at inconvenient times; right now it's $3.54 off the $35 list price at Walmart. Buy Now at Walmart

Stock up on ink without mid-month running out, especially useful for home offices or anyone printing regularly, and this 2-pack runs $12.43 below the $42 list price at Walmart. Buy Now at Walmart

Printing regularly on a Brother inkjet and tired of buying cartridges one at a time? This 4-pack covers black and color needs together, and at $25.19 it's $2.80 off the $27.99 list price. Buy Now at Walmart

Printing documents and photos at home gets more affordable here, especially if your HP printer takes the 68 cartridge, and right now you're saving $28 (about 46%) off the usual price. Buy Now at Walmart

Canon's PG-285 is the standard black cartridge for compatible PIXMA printers, so this works if you just need a direct replacement without hunting for a third-party match. Walmart has it for $35.89, which is $43.10 off the $78.99 list price. Buy Now at Walmart

Printer owners who burn through black ink fast will want to stock up here, since text-heavy documents rely on this cartridge most. Walmart has it for $35.73 right now, 52% off the $73.99 list price. Buy Now at Walmart

Anyone printing photos or documents at home regularly will go through ink fast, so having a black and color set on hand saves a trip later, and this 2-pack runs $19.29 below the $54.88 list price. Buy Now at Walmart

Printing at home adds up fast, and this 8-pack of 232XL replacement cartridges is a straightforward way to stock up without buying from the printer brand directly. Walmart has it for $29.64, about $9 (24%) off the $38.89 list price. Buy Now at Walmart

Home printer users who go through color and black ink at similar rates will get the most out of this two-pack bundle, and at $60.89 it's about $55 off the $115.59 list price. Buy Now at Walmart

Replacing both cartridges at once makes sense if your printer's running low on color and black alike, and this 2-pack saves you $22.41 (about 30%) off list price. Buy Now at Walmart

Printing large batches of documents gets expensive fast, and a high-yield 4-pack like this cuts down on how often you're swapping cartridges out. At $113.79, that's $122.20 off the $235.99 list price, roughly 52% less. Buy Now at Walmart

Update: The price has dropped to $26.89 since this was originally published.

Anyone running through ink fast will appreciate the XL yield on this 4-pack, which cuts down on how often you reorder, and Walmart has it for $27.58, $42.20 off the $69.78 list price. Buy Now at Walmart

Handy if you print often enough to burn through cartridges and want to stock up on a 4-pack instead of buying single cartridges, and it's currently $8 off the list price at Walmart. Buy Now at Walmart

Stocking up on all four colors at once makes sense if you print regularly and don't want to reorder cartridges one at a time, and the high-yield formula means fewer replacements overall. The 4-pack runs $26.09 right now, about $9 off the $35.14 list price. Buy Now at Walmart