So here's the trick: washitape!
There are so many different washitapes that are all cute and fun! It's best to use light colored ones for this idea.
above photo ^ found here
Anyways, what you do is tape down the washitape over the period of time of an event. On the tape, write what the event or occasion is.
And don't forget... It's a wonderful excuse to buy more washitape. ;)
If your writing won't show up on the tape, I suggest using a sharpie.
If it still doesn't show up, then you can always take a white sticker and put it over the part of the tape where you want to write. Then you can just write on the white sticker as seen here:
Hope you enjoyed the post! Thanks for reading. :)
~Anelise