Creating a home office emergency kit is quite simple. Start with a small to medium sized bin that will be able to accommodate your emergency supplies and keep them in a cool dry and easily accessible place.
Wireless Mouse and/or Keyboard
We take wireless technology for granted, that is, until the batteries die and then realize there are no spare batteries. Wireless mouse/keyboard combos come in various configurations and use different types of batteries such as "AA" versus "AAA" sizes and alkaline versus rechargeable. You need to identify the type and size of batteries both of your devices use and keep one extra set in your emergency kit.
For added protection, you may want to invest on a standard wired keyboard and mouse as a secure backup to your battery operated devices. And a standard budget mouse and keyboard can be purchased for less than $20 on-line.
CDs and DVDs
Another overlooked supply that has caused grief many nights in my past are CDs and DVDs. If you tend to work with such media on a regular basis, it is important to have plenty in stock... of both. In more than one occasion, I have encountered a rough night when what I thought was a DVD disk turned out to be a CD instead, bringing my late night work to s screeching halt. Don't let this happen to you.
Printing Supplies
Printers are a must have in every home office. Whether it is an inkjet, monochrome or color laserjet, or even a thermal printer, having the proper supplies is essential for every home office based on their particular needs. Some printer makes and models are easier to obtain replacement ink for than others, so make sure that you have at least one of each necessary cartridge in your home office emergency kit. Keep in mind that some high-end printers may have more than 3 cartridges.
And when it comes to paper, make sure that your kit has sufficient replacement paper, especially if your use any kind of specialty finish paper.