Amazon with SZHY-ink has the 8-Pack OSIR HP 950XL / 951XL Compatible Ink Printer Replacement Cartridges for $29 - $15 off with coupon code 2BM5Q3V6 [Exp 12/15] = $14 with free shipping on $25+ or with Prime. Works with select HP OfficeJet Pro models (see full list on product page).