Additional Euroshow tips
 

Just was updating my offmaps and thought I would share in case you don't know about it.

It's a free app that allows you to download a map for an area in advance over wifi and then you can use it offline without clocking up MASSIVE data roaming charges.

So go download offmaps, and put in the maps for amsterdam, prague and london and BOOM you will not get horrid data charges when you return.

Feel free to add any other tips here...