OTOH, one of the few coping techniques I've found to be helpful is when I absolutely MUST not lose something, especially to take with me somewhere on the next day, to loudly proclaim "I'm going to lose this thing, so I'm putting it here so I know where the fuck I lost it" - and making a big deal about it usually helps solve that problem.
…if I do remember that I need it the next day, of course. But more often than not I wake up and remember "I need the thing". :)