Lots of good techniques for memory. Fascinated by the topic for … decades now. Always experimenting since I was really little.
Having an active imagination helps. Mine never stops, so I just insert little baskets for me to pick up my thoughts in when I go between rooms so that I don’t forget, stuff like that. My roman rooms overlaps with reality – and I expect with the VR on phones, SOMEONE will come up with an app for the trick I’ve been using for a long time.