I'm not sure how practical that is for everyday use; most people just want to go from A to B and back again rather than going via C, D and E as well. I'd be more interested if they'd offer £1.80 singles and £2 returnsre the point about spending £20 pounds for a bus ticket for a family. There is an 'explorer' ticket which costs £15 pounds for a family of two adults and two children which can be used on any bus in Sussex and Surrey for a day. Its not widely advertised or even widely known by bus drivers in Brighton & Hove.