Data roaming is usually cheap if you pay up front. When I travel I pay a €5 fee for unlimited data for 24hrs. It doesn't allow tethering or film streaming but

Data roaming is usually cheap if you pay up front. When I travel I pay a €5 fee for unlimited data for 24hrs. It doesn't allow tethering or film streaming but everything else is covered. I can even use it for Skype calls.