We tend to use private CG's using Passport America, Good Sam or an occasional KOA for discounts. We have membership cards for all 3 and call about 60-90 mins before our arrival to check for a pull through space if possible.
After a long drive, we never hook up the sewer, rarely the water, but like to have power for 2 AC's or 2 furnaces depending on the time of year. We like to have 50amp power to cool the fridge down and relax with some TV and a hot microwave meal or sandwich to save costs instead of driving to a restaurant.