I used to keep all the raw files, but as it takes up tons of space I nowadays only keep the finished videos and the raw footage of "special" stuff, such as drone footage, action cam footage, time lapses etc. So basically stuff I could possibly use as B-roll in other projects or that is otherwise hard to get. All my vlog rants are easy enough to replicate so I'm not bothering with those apart from travel footage as that is again harder to get.