One little thing I like to do when I get a coin from a friend, a trade or as a gift, is to write the name of the person who gave it to me on the back of it. Sometimes I write a little note on when or why the coin was given to me also.
My memory isn't all that great sometimes. Sometimes it's infuriatingly accurate with trivial details.
On Christmas eve, I was helping Mom cook the turkey. She was looking for the label on the bag to tell her how much the bird weighed. I didn't even look up; "Mom, it's 14.53 pounds." Precise. I was even right.
But ask me what I had for breakfast today? I have no idea other than it was tasty.