CovKid wrote:No such thing as a simple solar setup, or indeed a short conversation about them

Rubbish

(Well, correct about the
"no short conversation about them" 
)
For years I have used a 60W rigid panel with a fag lighter plug on the end of the wire. No controller and the panel is not mounted. When I go camping I just lean it against summat, so it is pointing directly at the sun. I then plug the fag lighter plug into the rear fag lighter socket (I fitted, to run "stuff" off) and away we go. Simples.
I did used to be constantly checking the battery voltage with either a multi meter, or for a while with an LCD panel meter, to check how well it was charging, and to check it wasn't going over ~14.5 Volts. It rarely (if ever) goes too high, but it puts enough back for the next nights use of the sound system, laptop (sometimes) and lights etc,
Not saying this is as good as Martin's and others 100W flexi setups, with controllers etc, obviously it's not, but despite me being ok with electronics and also being a bit of a gadget man, I have left this simple as it has served me well enough for years at very little cost (~£60). One plus point is I can "point" the panel directly at the sun, whereas with fixed panels you cannot do that. E D I T = Oh, I do have a
Low Voltage Disconnect of course, I consider that is essential.