Good God, you don't need any of that stuff and you certainly don't need to plan ahead, assuming you will be on interstate highways. Third party DC chargers are so slow and unreliable, that I would never put myself in a position where I needed to use one. Doesn't hurt to have the J1772 adapter that came with the car (for hotels), but I wouldn't waste money on a CCS adapter unless you're really off the beaten path. We've taken six trips totaling 15,000 miles and never needed anything but the Tesla navigation telling us where to stop.