I have a funny story about those reminder slips.
When we built our house and first moved in, there were many details to attend to and I used post it notes like crazy.
My sister and nephew visited and on the way home my sister asked her son "Did you like auntie's house?"
He said yes and he wondered why his mom didn't decorate the way I did. My sister asked what he meant and he said he liked "all those little yellow pieces of paper."
LOL
Kids can be so funny and honest! It must have looked to him like large confetti that stuck to the walls. :)