Students still lose projects

Students are manually deleting their code, then typing in new projects, and pressing Save, which overwrites the previous project. Ideas:
1. Add an interstitial to confirm when deleting everything.
2. "Forget" the project name when deleting everything.
3. In order to train them to think about open projects, make them click New to get a blank window the first time.
4. Do nothing, and tell them not to do that.