I spend some time in laybys and some time on formal camp sites.
I can't go on grass unless it has been dry for ages, otherwise I sink.
Camping & Caravanning Club Sites are good value if you're a member, although they are a bit sniffy of my vehicle - a 30 year old racetruck - and positively unwelcoming to horsebox / removal lorry etc conversions, however, if you are a member and book online there isn't much they can do about it. Also you will get a better reception in low season because they want the money. You must have windows in the living part of your vehicle.
Caravan Club is more expensive but seems to be less judgemental.
To the point: I just found Honeys Green Campsite near Uckfield in Sussex. Few hardstands at the moment, but plans to do more, some statics but an eclectic mix of caravans and motorised vehicles, very relaxed, not too many rules, tenner a night no electric, £2.50 more for hook up. You need to book, they are pretty full of residents - yes, residents, they have residential planning permission. I didn't enquire too much about this as I'm not interested in living exactly here, but there was something about council tax.
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