The reason for keeping a note on a recipe card of the date, menu and who attended the dinner is
a) you don’t have to serve the same thing the next time they come for dinner and
b) if it is huge success you can use the same menu for another party. Be sure to list ANY dislikes or allergies of your guests on the card.
For sure on the back of the card, write down the name of the food, page it is on and what book it came from. Saves hours of searching. Like me, when I didn’t do it.
I got this idea from Martha Stewart years before I got this site going and I still have all that data in a file box. You just never know if that person from the past, comes to your door again.