ADHD here. Remembering things is a lost cause for me.
Instead, I lay physical “traps” for myself. Things in physical space that hinder my autopilot, snap me out of the trance, and give me a chance to reorient my focus into something more productive.
It’s not foolproof. Far from it. But it does help a lot.
Edit:
Just thought of another one I do: I have a phone casing that lets me keep cards in them. One of my credit cards go there, of course.
But the more important thing in there is my apartment access card. If I ever forget to bring my phone, I will only get as far as the security door outside before I realise I have to turn back.
I have to do this in the mornings with my work laptop. We’re encouraged to bring our work laptops home in case something comes up and we need to work from home. However, on a few occasions I’ve forgotten to bring it back with me, only realizing as I’m pulling into the parking lot, or, on one occasion, literally as I was walking to my desk, “Let me just get setup and… oh shiiiiiiiiii.”