My oldest, now 6, and second oldest, now 3, did not use cups until about the age of 3-4. My youngest however, a boy-turned 2 years old last sept., uses a regular cup just fine. He has been in daycare for over the past year, and at his last daycare they used a normal cup almost regularly. (My older girls had been in a home daycare prior to this daycare, so they mostly used their sippy cups there.) So, at home we just switched to a cup. While out in public at restaurants and in the car we use sippy cups or cups with straws though. We also have all hardwood floors, so cleaning up spills is not that big of an issue. I have read that having kids drink from a cup in the bath at bath time is a good training tool and easy to clean up since they are already bathing. Good luck!