London's buses have gone cashless. From July 6, you can't use coins or banknotes on buses – you can only use London's “ Oyster” prepaid smartcards, its short-term general travel tickets known as “Travelcards”, or contactless bank cards. You can still buy Travelcards and top-up Oyster cards with cash, of course. But paying the driver of the bus with the last of your small change is now a thing of the past.

Silicon Valley appears to have given up on solving anything but its own problems: those afflicting the same 20-somethings who are building these startups. The problem lies with venture capitalists, not entrepreneurs.

Dispute resolution is often a multistep process that can start with negotiation, move on to mediation, and, if necessary, end in arbitration or litigation.

This progression allows parties to start off, quite naturally, with less-expensive, less-formal procedures before making bigger commitments of money and time.

Still, there may be situations in which you wonder if it would be better to sue first and then aim for a settlement, rather than starting with a more collegial process.

It's the best way to get people to consume it.

You need a more efficient method.