if i really really really really really need to remember something i try to associate it with something else important that i might think about when i need to remember that other thing, and if the one thing is thought about or mentioned or if i see it then i sometimes suddenly remember to do the other thing, but this doesnt work too often lol. Most of the time i just remember after the fact or suddenly remember at the last minute, like for example i very nearly locked myself out of my house today again cuz i had taken my keys out of my pockets earlier and was closing the door before i realized i had forgotten them.
What annoys me about forgetting things is when im having a conversation and im talking about something important when i interupt myself by suddenly remembering another very important (to me) thing that i wanted to say only to forget to finish what i had started saying and only remember what it was after i have hung up the phone or left the company of the person i was talking to lol.