Wear a football shirt of the country you are on holiday in. It's a great ice breaker in bars and shops when the locals know you are on 'their side', especially if you are travelling alone. They need'nt cost a fortune, either. A replica shirt of the Thai national side cost me the equivalent of £2.
Andrew Berry

When travelling in Rome or Naples, keep hold of your small change. The cost of a single journey travel pass within these cities is €0.77 and machines only give change in multiples of €0.05, not allowing you to overpay. So insert a 2 cent coin first, followed by a €1 coin (giving change of €0.25).
W & K Pickess