Yes I have quite a genetic archive going at the moment.
When I buy seeds I never germ all of them; usually I just pop 3 or 4 in case something goes wrong.
Then I also save seeds from beautiful or hardy or nice smelling plants.
I got started breeding down from the best of the bagseeds I was given by a pot-snob friend, breeding for tolerance to abuse.
Here's my seed collection as it was a couple months ago... it's a lot bigger now!!!