Not sure if this was mentioned (please disregard if this was already suggested) - but "how to deal with insurance". For instance differences in plans, PPO, HMO etc....how to file appeals, how to get pre-authorizations, what to do if a request is denied - as someone who was VERY healthy before this and saw the doctor only once per year on average (for a routine pap smear), I had NO idea how to start things with insurance when they didn't want to pay or approve things. Other things - like when are copays required and when is it still "post-op followup" and no co-pay. My problem experience was with an HMO that didn't want to pay to let me see a specialist outside of my network. I had no idea where to start.