A question that's been asked a number of times. You'll find everyone has their own method.
I keep it simple. A folder for all gen. records with folders for each family. Inside each family folder a folder for census, BMD, wills, photos etc. A separate folder for web links.
Rule one is save everything. You may come across a person or some info. that may not be relevant at the time but find out later it is.
For hard copies I only store documents I've been sent such as BMD certs & wills which are kept in colour coded binders after being scanned.