Brilliant, glad you're getting on well with it. Working out how to public charge is a masive tick in the box regards ownership. Different chargers may have slightly different instructions, but as long as you follow the instructions they provide you shouldn't have a problem.
Did you use a Tesla supercharger? AFAIK they're the cheapest public chargers in the UK.
As for cleaning it, there are a few people on here who are a bit OCD in their cleaning (and I'm counting myself in that regard) If it doen't have mud flaps, then a set of those help cut down on the amount of muck thrown from the tyres up the sides and rear of the car. Can be bought very cheaply from places like AliExpress.