1. Most European hotels don't provide wash cloths, take an old towel cut up small.
2. Take handi-wipes in case you aren't someplace to wash your hands.
3. Small votive candle.
4. Small bar of soap.
5. Carry coins to pay for the bathrooms, they're not free.
6. Electrical converter.
7. Butane curling iron.
8. Flashlight.
9. Ivory liquid in a small container is good for laundry and body.
10. Number one tip: don't forget your passport