Heh, I've no doubt that the lower humidity levels in the UK rarely come even close compared to Finland or other Nordic countries (or countries like Canada, for example). Even here, the relative humidity during autumn can be decent when it's really damp outside anyway, but once it gets even close to freezing temperatures... well... you better watch out for your ukes and other instruments. I mean for goodness' sake, my nose and throat are completely dry when I wake up on a winter morning if I haven't properly humidified my flat. I wouldn't dare think what'd happen to my ukes in those sort of conditions without proper humidification.