were your razors dual voltage? You do realize that Europe runs on 240V @50Hz, compared to the US, which runs at 120V @60Hz, right? Many things (most laptops, actually, and some razors) are dual voltage, and will work just fine with just a plug adapter. If it ISN’T dual voltage, you will fry the circuitry plugging it into a European outlet. To run 120V items in Europe you need to buy a transformer that is rated to the power output of your device. (For about $30 you can pick up a 75W one, but that will only be good for low drain laptops, charging razors, etc…it will blow out if used with a hair dryer or iron or the like).
To check whether your items are dual voltage, look at the information panel on either the AC adapter or the back of the device. If it says anything between 110-130V, and that’s it, it is for US voltage only and must have a transformer to be used in Europe. If it says 110-220V or the like, it is dual voltage and will work with just a plug adapter.