I bought a netbook and 3 dongle and it is great for checking mail, campsites, games and screen is comfortable enough to see and the keyboard for touch typing.
Battery operated and have only managed to spend about £3 on my pay as you go dongle over the Summer camping.
Amazing family weekend with old steam engines, classic car displays, market stalls, and full catering and bar. And camping on site - Save £25 by booking in advance.