Yes Linda is correct. You will need a transformer for all but possibly your electronics. It should say on the backside if it's 220/230v compatible or 110v only. Note that housing gives you two 2000w transformers. We keep one in our kitchen and one in our den. We picked up some little 50W transformers at the NEX that just plug into the wall outlet for our toothbrushes, phones etc.
You can find transformers in various shapes and sizes for sale on NAH from those who are PCSing out. We picked up a huge bagful of plug adapters (needed for the many different types of European plugs and sockets-its pretty crazy), and several transformers this way.
You can also find 220v appliances secondhand or buy new at the NEX or Auschan.
Just remember to turn those big transformers off when you are done! They still draw the max voltage even if you aren't using what's plugged into them. They do have toggle off/on switches but we usually unplug from the wall just to be sure.