I'm shocked to see that it's already nearly two weeks since I got back from my UK research trip -- it seems like it was just a couple of days ago. It was a fairly long trip: five weeks in total, essentially all of them spent in archives in London (National Archives, British Library, Imperial War Museum), Newcastle (Tyne and Wear Archives), Middlesbrough (Teesside Archives), Woodhorn (Northumberland Archives), Durham (Durham County Record Office), Edinburgh (National Records of Scotland), Leeds (Liddle Collection, University of Leeds), and Aylesbury (Centre for Buckinghamshire Studies), as well as at a conference in Wolverhampton (British Commission for Military History). In fact my initial plan of four weeks research and one week holiday fell by the wayside, as there was just too much I still needed to do in the archives in London to waste time in Berlin. I half-expected this would happen, which is why I didn't book a holiday in advance (corollary: if I really want a holiday, I should book it in advance). But it was certainly worth it in research terms, as I found some great stuff in that extra week.
I had to adjust my plans on the fly in other ways, too. For example, I spent two weeks in Newcastle, with the intention of using it as a base from which to examine archives in the northeast for evidence of invasion, Zeppelin and spy fears. But it turned out that there wasn't a whole lot to find, either in terms of private diaries and letters or local government records. One week, with better planning, would have been enough. Because I was in Newcastle, however, it was feasible to commute to Edinburgh or to Leeds, so I spent two useful days at the National Records of Scotland and one at the Liddle Collection. A shame I didn't plan this from the start, though.