I made some habits to remember things more easily. I have an app on my phone (notable, it's on f-droid) which lets me write reminders that just show up as notifications until I dismiss them. I got into the habit of reading through these at each context switch (about to leave work, just got back to my desk, arrived at a destination, etc). I also use the "object out of place" strategy a lot, most often by leaving something random on my keyboard (e.g. a pen), and when I come back I wonder why it's there and stop to remember whatever thing I needed to do.