I naturally have a bad memory as well. I haven't found a way to improve general abilities, but Anki has worked well to keep my memories fresh. (The cost is th

I naturally have a bad memory as well. I haven't found a way to improve general abilities, but Anki has worked well to keep my memories fresh. (The cost is that I spend an hour a day refreshing my memory. The benefit is that I recall everything that's in Anki.)