Hi folks - I am going to be in France, Germany and Italy. I am going to be in each country for about 4-6 days. I am currently debating between buying a SIM card as I go versus using my cell phone on roaming (I am with T-mobile). I expect to use the phone only i emergencies and to call my hotel (in case my plans get delayed). i am inclined towards just using T-Mobiles roaming facility (its $1 per minute) but wanted to check with you folks.
Is there any SIM card that will work in all three countries? What is the smallest amount that I can buy a SIM card for? Is finding public phone booths relatively easy?