The leads for the individual instruments live in the instrument cases
coiled however they'll fit best . Mic and mic leads live in the double
fiddle case adapted for mandolin with extra large bits space , and the rest live in what they call over here a 'Pilots case' which is very like Bruce's . I use velcro ties , pack of six for £2.50p from B & Q having looped the speaker leads round my forearm . Twenty five yards at a time is usually enough , though we have doubled em with a double female 1/4 connecter for a really long room !