I've added some new options to projects:
1) Copy project
If you've stored your project in the cloud, clicking on the cloud icon will show you a dialog that lets you copy that project to be stored in your web browser.
2) Save project to file
Clicking on the cloud/local icon next to any project in the projects list will show you a dialog that lets you export your whole project to a zip file
3) Import project from zip file
The projects page now has a new option for importing projects from a zip file.
These are options to help you avoid hitting limits on the number of projects you have stored in the cloud.