I am thinking of joining all the underground restaurants out there and I have been reading all the information available including Ms MarmiteLover's book - highly recommended and most informative.  Can anyone tell me what the rulings are with regard to business rates on the home and the 'underground restaurant' principle.  Also I notice some people have a fixed charge and others have a minimum donation rather than a charge - can anyone advise as to the advantages of either?  Any advice would be… Continue