I forgot to mention “relationships”, the most important piece of data. I store an acquaintance’s contact info in one place. I store a personal business or org

I forgot to mention “relationships”, the most important piece of data. I store an acquaintance’s contact info in one place. I store a personal business or organization in another place. Sometimes the acquaintance has a connection to the same business. This needs to be captured. Eg. My neighbor and I are both members of the same HOA. He is the President, I am the treasurer. I sent him an annual report on date XYZ for meeting on date ABC. This info is stored in Contacts, online documents (spreadsheets), Calendar events, and email. I need to keep keywords that are consistent in all of these locations. (And notes).