We are getting our first new caravan soon (Jurgen Tooradin) and were wondering if a generator is essential for free camping sites. We are expecting to be on the move a lot so we wouldn't be in one place longer than say 3 days. We have always owned launches before and we are assuming it would be the same setup, if anyone can offer advice it would be appreciated to us caravaning newbies. Thank you.  Also is there a time limit on free camp/caravan sites??