Don't trust the demon

Bold of any of them to assume I'll remember there was an "it" to remember in the first place. My best offer is a vague sense that I've forgotten something.
- A vague sense of having forgotten something .. that's got to be true for ADHD and non-ADHD alike!
  
  I always trust that feeling, what's the downside to not doing so, other than time?

My memory sort of acts like a carousel/merry-go-round, in that I'll store a memory, I know it is there, but I cannot access it at will, and it will re-appear at a random time at some point in the future when doing something completely unrelated.
A "memory-go-round", if you will.
- A "memory-go-round", if you will.
  Eyyyyyyyy
  <double finger guns>

I keep finding old notebooks, where i started writing stuff on the first page.
Just to never ever touch it again, but find it again years later and go "ooooh, i wrote this?"

I text myself, because I (almost) always know where my phone is
- I use discord, its free. Made a server with only myself. I have so many channels that are all lists of things, a foods-I-like channel is helpful for when I am hungry but don't remember what I like at the moment.
  
  I have my own personal server as well. I send myself links all the time and it means I can upload 1 image and then just send the link around which is great for bad internet

"I'll remember", I say, not because I'll remember, but because any form of writing it down I will inevitably forget as well. I'm just trying to save myself pointless work, here.

For me, a proper reminder needs to have a property like physically preventing progress until I take care of the thing, or jumping up and demanding my attention until I take care of the thing.
The most basic form is that if I need to do something tomorrow at noon, I don’t create a reminder. I create an alarm! And if the alarm goes off and the thing is not done, I snooze it instead of stop it.

I tie this to my keys so it forces me to remember that there is something I needed to remember... Now if I could only remember what that thing was...
(No that is not my carpet lol it's shitty foam to protect parts put on it at my job)
- I clip my keys themselves to whichever thing I have to bring with me or remember.
- Now to attach this to the lapel of my shirt where it belongs

Where ADHD and SelfHosted combine: I self host Trilium Notes to attempt to solve this problem. Most of the time it works.

I have a whiteboard on my desk. It's the only effective "to do" list I've found, for me. It's covered in chicken scratching. I erase stuff as I do them.
- Whiteboards are great for this.
- Woah. How large is that whiteboard?
  
  About 18x8 inches. Not to worry, I have a classroom-sized whiteboard as a backup.

I use email Drafts sometimes for lists of things.
I will find lists from last year sometimes. No idea if I did it or not!

How about saying you'll write it down -hey look, a distraction!- then forgetting what it was that you wanted to write down?

I've found that using a calendar app with reminders can be a great help for me. Personally I use Fossify Calendar (formerly Simple Calendar) to create reminders for myself for hours/days/months in advance. I'll never forget to do the laundry again....at least until I somehow lose access to my phone.
- I live and die by my calendar. I still have the yellow version (Simple Calendar) and it works pretty great.