Summarize the following:
Just like with your physical files, you'll want to start with the broadest categories that your files fit into. For example, if you are an independent contractor, you might want to organize your files by employer. That is, create one folder for each of them. Then, you should split your files up within each broad category into smaller ones. This means that your employer folders could be further split into different folders containing information about each project with that employer.  Consider staying consistent within each broad category. This will make your files easier to find. For example, you could have the subfolder for each project contain files like "project documents", "billing," and "communications."  You can also organize folders broadly by year if that seems easier or more relevant to your files. It can be beneficial to have all of your files saved electronically in one place. Despite the time required, you should try to scan in as many of your physical documents as possible so that they can be electronically saved and backed up. In addition, make sure to download any files held online in other places, just in case the hosting website becomes inaccessible when you need the files again. Organize these files as you would any others. File names should be easily understandable and unique. That is, you should be able to look at your file names and immediately know what is contained in them. Try including a date, a signifier of the folders that will contain the file, and an individual descriptor. For example, a billing file created in June of 2016 for your client X Corp might be called "0616_XCorp_Invoice_2." This will allow you to know exactly what the file contains without taking the time to open it. Whatever system you use to name your files, just make sure to do so consistently. Once you've chosen a system, stick with it; it will be hard to go back and rename all of your files later. The primary danger of electronic file keeping is that your information is susceptible to loss through a computer crash. Be prepared for this by regularly backing up your files to an online backup service, CDs, or an external hard drive. Be sure to label these storage devices as clearly as you have labeled your files. If you have an external drive or CDs, consider keeping them in a safe place away from your primary residence to avoid a total loss from a fire or natural disaster.

Summary:
Start with broad categories then get more specific. Scan or download files you don't already have electronically. Give your files specific names. Back up your files regularly.