What about a little black book icon we can click to keep notes and information we write down in game discussions. Pricing histories, cartel wars etc. Or if you just feel like writing it in the style of a journal, of your cartels movments, make for a fun read back to when we would start writing in the little black book. 

Also maybe another Little Black Book feature

Use 10 Energy to use the  little black book for massage, prostitute, ******, and a progrssive line of treatments ending with like the ****** using 50 energy, 75% health back, and 5% bonus to damage for 10 min.,  Heals you 15% health or something along those lines.

Happy days to you all! Hope this isn't an awful suggestion haha

I would like to see atleast something in regarding a personal notepad. I would like to write lists like daily tasks eg; Feed dog ect ect