1. At least London's Notting Hill Carnival got off to a trouble-free start. BNC
2. British Rail tell us that the 6.30 Aylesbury to Marylebone train service has been cancelled this evening, while the buses continue to operate a trouble-free service. BNC
3. Butyl is the best liner to work with because it's more flexible, and you can expect many trouble-free years from it provided you don't assume it's immune to damage. BNC