Aaah, of course (duh!!!)
Isn't there that one called somethin g like 'Change the world for £5'? Sorry,sound thick,but I know it's been a roaring success and £5 appears somewhere.....
(I like reading my father's scary collection of self sufficiency and knife sharpening books circa 1965! That makes him sound like a nutter-he's not,honest?)
If I may be nosey,have you put certain things into practice already?