I have some file structure and file storage insight/advice for anyone getting started. Any video edit big or small can quickly and easily balloon out of control in both the edit project file and especially on your hard disk. While I don't always follow the best practices myself, I did learn them from a Hollywood VFX specialist.
1. Develop a naming convention that you use for all of the files in your edit. This is absolutely the most important thing to get into a habit with. Regardless of folder structure, you should be able to look at the filename of a particular file and know exactly what it is. If you truly want to develop a professional habit with naming files, DO NOT USE SPACES in your filenames. Spaces in filenames do not always translate the same across operating systems or rending software.
I use something similar-ish to this: mediaType_shortDescription_identifier.ext
mediaType = Music/Sound/Video/Graphic....etc.
shortDescription = Keep it simple. "ThorDVDrip"
identifier = this can be many things, but you should keep things consistent. The identifier will help you tell that file apart from other versions or copies of the same file. For example "graphic_supermanLogo_red.png" or "projectFile_jumanjiRedux_v03" If you use a number in any part of your filenames, get into the habit of using at least a double digit number. If you start naming with single digits - "version_1" - by the time you get to version 10, you will no longer be able to sort the files in chorological order as "10" will be placed before "1" when sorted in ascending order. So just get in the habit of using "01" or "001" it will make things much easier for you when you find yourself digging for a particular version of a project or file.
2. Use the same project file structure as your folder and file structure on your hard drive. Most editors allow you to import media and organize them into bins or folders. Mirror the folder structure of your storage location. You will find that you are going to be storing and importing more media into your project files than you will actually end up using. If you use the same structure in your project file that you do on your hard disks, it will be very easy to prune your storage location when it's time to archive the project. Or, if you need to migrate the project to a new storage location or to share with someone, you will be able to give them exactly the files necessary vs. the whole mess of things you have downloaded/created/rendered over the course of the project.
3. Data storage tips: If you have more than one hard drive on your computer, you will find that storing all the project media on one hard drive and outputting your renders to another hard drive will usually give you a bit of a speed boost in your render times. Always, always, always backup your stuff. If you really value the work you have been doing, you should be backing up to a different storage location regularly. I don't always do this myself and I almost always regret it. You aren't just combatting file corruption, you may sometimes find that you get your edit sideways by mistake and need to restore from a backup. If you are strapped for space, make sure the project files are backed up first. You can always re-rip a dvd or a soundtrack and then relink the project file. Finally, do not use networked storage for active project files. Most times I find people know this already, but it is worth mentioning. Your renders will suffer hard, even if it's a local network and you are hardwired.