Copying into a folder

Can I copy all my website’s info, assets, etc, into a new folder so they aren’t spread out?

I organize my projects into one folder with sub-folders for images, resources, icons, PDF’s files, even the sub-folder where I publish locally is contained there …
Plus I occasionally make a duplicate of my project file and label it by date and keep it in the folder in case the one I’m working on becomes corrupt; which hasn’t happened lately but has in the past.
So yes, that should be OK if I understand your question. Organize however it makes sense to you, and the more storage space you have the easier that is. By organizing the way you suggest, I think backing up your RW project becomes easier with most of the pieces in place.