If you choose to do this monthly backup manually, an easy way is to purchase a form of removable media, such as an external USB hard drive (at least 1000 Gigabytes capacity). On the hard drive, create a separate folder for each of your computers, and create 2 folders in each computer folder – one for each odd numbered month and one for each even numbered month. Bring the external disk into your office on the day that you do your monthly backup. Then, complete the following steps: connect the external disk to your first computer.
