Some non-local business and corporations require it. There in, requiring you to do… or they don’t pay up… Many local decision makers that you know personally, may not feel a need. I would write something up or send them an email saying “It was great talking to you yesterday. This is what I agreed to do… You agreed to … If this is incorrect please notify me immediately. Thanks, I value our friendship.” Just something, so at some time when we “forget” there is something to help us “remember”! Now if I could put a tracer on my teenager…