Do I need to save my work?

Your work is saved automatically in DesignSpark Electrical, so there is no "Save" button as such. If, however, you want to save work to a known location, for attaching to an email, for example, you can use the Project Manager screen to archive individual projects (or the "File" tab > "Archive environment" button to archive the complete tool environment) to a location of your choice. The archive environment command can be useful in a team environment to allow all designers access to a central library of projects.