21. Phone
A mobile phone can be a lifesaver in an emergency, so always pack yours.
Take along a little insurance in the form of a charger, to keep the battery topped up. iPhone users can choose Griffin’s £24.99 PowerJolt Reserve, which has a detachable power pack and USB charger for the lighter socket.
For other phones, our test winner was Ring’s PowerTravel rechargeable, also priced at £24.99.
