Noun
special attention with intent to remember
Source: WordNetPlease, sit down," Sharon said with another hair toss. I made a mental note to practice doing that in a mirror the next time I saw one. it seemed a useful skill, right up there with roundhouse kicks. James Patterson
Sin is moist make a mental note. Christopher Moore (author)
Yeah sure, why not?"i said, making a mental note to get a good look at his wings. For all I knew, they were remote-controlled and duct taped to his back.” -max. James Patterson
he made a mental note to send her flowers Source: Internet