hey stinky! Hows it going?
I dont travel full time but think can contribute to few things ppl have asked.
Countryside
can wild camp or sleep out in the countryside pretty much anywhere thats not immediately obvious farmers land including national parks (lake district, up in scotland) without any real fear of owt. There are even comfortable caves some places (eg south peak district). There is also a network of free shelters up north in beautiful remote places:
www.mountainbothies.org used by walkers etc. If u go treat well/ why not do some work or some cleaning/ something good for the bothies cos the wardens put a lot of work in & too many ppl take the mick.
foraging:
There is plenty to forage but obvs might take too much time to learn n obvs again u cant really live off.
Up north where i am stuff includes:
greens: nettles, wild garlic, garlic mustard, mustard, bistort
roots: garlic mustard, horseradish, wild carrot, bullrush, pignuts
nuts: hazelnuts, ocassionaly walnuts
fruit: tons - eg bilberries, blackberries, raspberries, apples prob most common.
skipping
think small places/ small eg tescos are better here than supermarkets where bins usually locked away. Pizza hut seems pretty good often.
Food banks
we have food banks that give out food/ meals 1 or 2 days a week. Churches could prob tell u were they are
Hitching
hitchwiki is good for here. Not that many ppl hitch (except in rural scotland) but I usually get a ride in under an hour easily. Service stations on the motorway are good to hitch from. Can still get rides off lorries but lots of long distance ones are no good anymore cos of insurance/ previous hijackings, i usually try with cars 1st.
Trains
fairly easy to jump up north. Usually ask for yr address and to see some ID if caught. penalties up north are now 20 quid on spot fine in some places ..so if a journey will cost £15 for an hour or 2 with our rip off train prices it seems worth it. Lot of trains the conductor doesnt care now as well as they're all about to be phased out for barriers (and if you get stuck behind barriers/ there are staff on its well worth looking round, especially up north, as lots of stations have an easy way out/ round/ barrier free entrance)