A fantastic and useful module at a realistic price. It allows you to place personal notes on another member's profile that only you can see. I've placed the block above the member's profile description so that it will hit people in the eye if they've visited the member before and left some personal notes. Here's an example of how it can work for you and your members:

My Personal Notes about memberx
12-12-16 Made first contact. No response.
24-3-17 Finally received curt reply. Said she wasn't see more interested.
14-9-17 Memberx contacted me wanting to be a friend. Rejected.

There's also a handy list of all the notes you write in your account page.

Well done Anton! A well executed module that's so easy to use.