We are going to be in Switzerland and need to obtain adapters before we leave from the US. From my research, it appears there are 2 types of outlets in Switzerland; the flat version and the Shucko or recessed version. Is that correct? I've been hampered in England by this situation before when confronted with a recessed outlet that wouldn't take my flat adapter, even though the prongs were the correct shape and size, and as much fun as that was, I don't want to repeat it! Can anyone suggest the best adapters to get for Switzerland? We are staying in an older hotel in Wengen and another in Lucerne, but I have no idea what style adapters would work for their outlets.