Same here ^^
I also clone my working directory for all stuff i made (models 3D/2D stuff anything) to an external drive and never overwrite it.
Now i need for every backup 18GB (project + all assets).
Had a corruption once and reacted in panic and made everything worst.
Much space needed, but one time ago those old files helped me to reconstruct a project, without older files it would be end of the road.
Sure most clones are useless, because assets/files not changed, but i a m really scared about lost of stuff again.
I do not trust that online stuff.