If you've ever done a walk that spans more than one map sheet the faff will be familiar; and it's usually raining and windy when it comes to the swap, too. To get around this the Ordnance Survey (OS) has just launched a range of customisable maps.
In reply to davidnichols: Yes, but no: 'The custom-made version will be the same quality and detail as these benchmark paper maps, an improvement on OS Select, the previous made to measure offering from the OS'