I have a really bad memory, but the part that affects me most is inability to remember conversations, even fairly recent ones (like the day before). Just zero recall of it ever happening. I'd love a way to quickly and unobtrusively log 'talked with Able and Baker about X Y and Z at such and such time and place'. Right now all I can think of is typing it into my phone or writing in a notepad.
But having such a solution, that I could review to improve recall, or search if necessary, would be lovely. Something quick and unobtrusive.