One of the ongoing expenses of having a computer is the constant supplying and the maintaining of the printer. I often print out driving directions, food recipes, and lists on my home computer and printer. Sometimes I bring work home from the office so I can finish up a report or presentation in the comfort of my own home without the distractions of dozens of people moving down cubicle corridors.
Of course, there is never a good time to fun out of ink but there are worse times, so as soon as you have a critical, multi-page report to print, your printer will run out of ink and shut down. Usually this is with a looming deadline and long after the local retail stores have closed for the night. This happened to me once and I swore that I will not allow that to ever happen again. So I bought extra ink cartridges and keep them in a desk drawer, at the ready for the first sign of running out. Stocking up on ink and toner cartridges can be a significant expense, so I took that opportunity to save money and buy refilled cartridges that are on sale and if there is a coupon to use along with you can count on me using those as well.