ADHD tip: if u need to remember something, inconvenience urself with it.
works best with physical objects obviously but just. oh i keep forgetting my lunch box before work? now after prepping it i set it in front of the door so i cant leave without moving it. dont wanna forget to take my pills? well in about to eat dinner so im gonna set the pillbox down right where my plates gonna go. gotta deal with x before bed? well, ill set it on my bed so i cant sleep without moving it. make it so that u cannot proceed with another task without interacting with the forgetfullness object.
u can also sub in an object that maybe isnt the task itself but is a related reminder object (detergent for laundry, trash bag to replace bag when u throw out the damn trash, etc)
and not in the VICINITY of another task, like. the reminder object is On Top Of my game controller and i cant play video games without being reminded "oh i had TASKS".